, Rev (C) (ARRV)

Transcription

1 , Rev (C) (ARRV) ARRV TEST PROCEDURE Test No Test Title: Scientific Sonar Deep Water Operations Revision: (C) Contract No: 0650 Vessel: R/V Sikuliaq TEST PROCEDURE PREPARATION/APPROVAL/REVIEW APPROVED BY: PREPARED BY: RPATTON 9/03/2013 Date: R.PATTON 9/3/2013 MMC ENGINEERING D. Jalkanen 9/3/2013 PROGRAM MANAGER S. Wellens 9/3/2013 QUALITY ASSURANCE Date: Date: Date: Performed By MMC TEST PERFORMANCE SIGN-OFF Date: OWNER - UAF OWNER/ABS Witnessed Reviewed Date: ABS (if applicable) Witnessed Date: Reviewed Test Passed: Yes No See Comment Sheet Test Performance Reviewed: Test & Trials Superintendent Date: Quality Assurance Manager Date: 1

2 ARRV TEST PROCEDURE Test No Test Title: Scientific Sonar Deep Water Operations Revision: (C) Contract No: 0650 Vessel: , Rev (C) (ARRV) R/V Sikuliaq REVISION RECORD REV DESCRIPTION APPROVAL - Original Issue GML A Incorporated UAF Comments GML B Incorporated UAF/UNOLS comments. GML The test procedure number changed from to Revision level GML remains as it was in the stage 6 procedure. C Incorporated second set of UAF/UNOLS comments (ADCP NB & BB interference) GML 2

3 ARRV TEST PROCEDURE Test No Test Title: Scientific Sonar Deep Water Operations Revision: (C) Contract No: 0650 Vessel: R/V Sikuliaq TEST PROCEDURE 1.0 GENERAL 1.1 TEST OBJECTIVE : The purpose of this test is to show that the Scientific Sonar Systems have been correctly installed and operate as designed.. This test shall be accomplished outside of the Great Lakes in water deep enough for suitable operation. 1.2 TEST METHODS: None 1.3 EQUIPMENT INVOLVED IN TEST Teledyne, 75 KHz ADCP Teledyne, 150 KHz ADCP Kongsberg TOPAS Kongsberg EM710 Kongsberg EM ITEM TO BE TESTED: Systems listed above DWG EQUIPMENT CONFIGURATION See DWG ADDITIONAL INSTRUCTIONS 1.6 SAFETY PRECAUTIONS: Federal, State and Company standards for shipyard employees will be enforced at ALL times Observe standard shipboard electrical safety precautions Ensure no personnel are on the vessels mast. 1.7 TEST EQUIPMENT REQUIRED TO COMPLETE VARIOUS METHODS OF TESTING IN SECTION 1.2: Sound Velocity Meter 1.8 PREREQUISITES 3

4 1.8.1 MMC Test Procedure Scientific Sonar Insulation Resistance Test needs to be completed and signed off MMC Test Procedure Scientific Sonar COAX TDR Time Domain Reflectometer needs to be completed and signed off MMC Test Procedure Scientific Sonar Light Off and Operation needs to be completed and signed off Read the entire applicable section of the procedure before starting this test Systems are completely installed and commissioned Gyrocompass should be operational Centerboard shall be in the flush position Seapath shall be operational 2.0 REFERENCES: 1. MMC DWG REV(-) 2. Installation/Operation Manuals of the applicable equipment if available 3.0 GENERAL NOTES 4.0 TEST INSTRUCTIONS & TEST DATA RECORDING: 4.1 ACCEPTANCE TESTING FOR A 75KHZ ADCP MOUNTED ON A MOVING PLATFORM Introduction This portion of the testing plan is intended to test ADCP operations at sea and confirm it adheres to RDI factory specifications. This procedure assumes that the Dockside Testing procedure has been performed and all testing criteria have passed or been confirmed to be operational. The following tests will not obtain favorable results if the previously mentioned testing has not been performed. The performance of any ADCP relies greatly upon the installation into any platform. There- fore, the system must be tested at sea to understand the effects of the platform on the ADCP performance. At Sea Testing includes tests for Acoustic Interference, Profiling Range, and Profiling Reasonableness testing. For each of these tests the following Equipment and ADCP setup requirements are recommended. Equipment Required o Ocean Surveyor 38kHz, 75kHz, or 150kHz ADCP or WH Mariner 300kHz ADCP o Computer o VMDAS Program o WINADCP Program o Navigation Interface Connected o Heading Interface Connected VMDAS Setup Table 5 minutes 10 minutes 4

5 5 ADCP Setup Table OS 38ADCP OS 75ADCP OS 150ADCP WH 300 Mariner ADCP WH600 Mariner ADCP WPO WPO WPO WP1 WP1 NP1 NP1 NP1 WS0400 WS0200 NS2400 NS1600 NS0800 WF0600 WF0400 NF1600 NF1000 NF0800 WN065 WN065 NN065 NN065 NN065 BP001 BP001 BP001 BP001 BP001 BX2000 BX1250 BX20000 BX15000 BX10000 WD WD ND ND ND TP TPOOOOSO TP TP TP TE TE TE TE TE EZ EZ EZ EZ EZ EXOOOOO EXOOOOO EXOOOOO EXOOOOO EXOOOOO EDOOOOO EDOOOOO EDOOOOO EDOOOOO EDOOOOO

6 6 7. Interference Testing The ADCP transmits and receives acoustic signals from the water. If other sonar devices are operating on the platform at the same time as the ADCP it is possible for those signals to bias the ADCP data. Therefore, all ADCP's must be tested to ensure that they are not receiving interference from other sonar equipment on board the vessel. The following Interference Test will determine if additional acoustic devices on board the vessel are interfering with the ADCP receive signal. Platform Testing Setup This test requires that the platform be navigated to a body of water that exceeds the maximum expected profiling range of the ADCP. Use the following table to determine the minimum water depth required. OS 38 ADCP OS 75 ADCP OS 150ADCP WH Mariner 300 ADCP WH Mariner 200 ADCP 1200 meters 1000 meters 800 meters 300 meters 150 meters Minimum Water Depth Requirement Platform speed for this test must be DRIFTING. The motors may be running if required for platform safety. The test sequence starts with ALL sonar and non-essential electronic equipment turned off. Only the ADCP should be on for the first test. This test will establish a base line for the interference and is critical to the rest of the tests. After a 10 minute period the first sonar device is turned on, transmission started, and the data is reviewed for interference terms.' At the end of this 10 minute period the first sonar device is turned off and the next sonar device is turned on and started pinging for 10 minutes. This process repeats for each of the sonar devices. Computer Screen Display Setup Ensure VMDAS is configured to have WinADCP enabled in the user Exit" tab. The RAW data (.ENR files) being collected by the VMDAS program will displayed in the WINADCP program contour plots for echo intensity data.this data will show the single ping return levels. Note: This Interference Test shall be ran in both Narrowband and Broadband mode.

7 7 4 TELEDYNE,. RD INSTRUMENTS A Teledyne Technologies Company 8. Interference Results Sheet If there is interference in the area of transmit/receive, the echo intensity data will show spurious echo intensity jobs. An example of what interference may look like is shown in the Figure below..!9 S l 1 ro 722 Sub 1 tom. 1 99Al :.I 99m/ S[IJ Interference will appear as periodic green blocks in the data set. Please note: interference will be lost in the upper part of the profile. However, it can be seen clearly seen once the system reaches the noise floor (point where there is no longer signals being returned from the water). Interference seen anywhere within the echo intensity profile data will result in a bias to the ADCP data. On the following page is a table to log the Interference Test Results.

8 8 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Device Type and Manufacturer Operating Frequency Pass or Fail ADCP only. No Sonar s or Equipment Running Interference Test Results Table

9 9 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The above tests confirm the ADCP is operating according to factory specifications and ready for WATER PROFILE RANGE TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date Printed Customer Representative Name Date D TESTWAIVED RDJ - initials Customer Representative initials

10 10 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company 9. Water Profile Range Testing The range of any ADCP is directly dependent on the level of backscattering material in the water, the transmit power into the water, the received sensitivity, and the level of the background noise. Each of these effects the range of the system in different ways but in the end can result in reduced or extended range. ADCP's transmit power and receive sensitivity are fixed based. However they may be effected by the installation of an acoustic window in front of the transducer because a window will absorb sound both transmitted by the ADCP and the sound returned from backscatter in the water. The volume of the backscatter in the water will also affect the range. All specifications for range assume that there is a certain amount of backscatter in the water. The backscatter volume is not controllable in any way. Background noise varies as the platform's speed increases or decreases. There are 2 types of noise created by the moving platform; first, there is the noise due to propeller and engines; and second, there is the noise created by the rushing water across the platform and ADCP transducer. This test is used to determine the effects of the background noise on the range of the ADCP. This information can be used to determine the optimum speed of the platform to obtain the desired range required. Platform Testing Setup This test requires that the platform be in water deeper than the ADCP's maximum expected profiling range. Use the following table to determine the minimum water depth required. OS 38 ADCP OS 75 ADCP OS 150 ADCP WH Mariner 300 WH Mariner 600 ADCP 1200 meters 1000 meters 600 meters 200 meters 100 meters Minimum Water Depth Requirement Platform course for this test MUST be a continuous straight line. The speed of the platform will be varied during this test. At each speed the system will be set to collect data for a minimum of 10 minutes. The following table lists the recommended speeds. Speed 1 Sp_eed 2 Speed 3 Speed 4 Speed 5 SQ_eed 6 Drifting 3 knots 6 knots 9 knots 12 knots Maximum Speed Platform Speed Computer Screen Display Setup The Tabular Display of the Long Term Average data (10 minute averages) will be viewed in the VMDAS program.

11 Range Results Sheet TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The data collected in the long term average (10 minutes) tabular display will be used to determine the maximum range of the ADCP. The maximum profiling range of the system is determined by locating the last valid bin and then using that ping to determine the range. To determine the last valid bin the following criterion is used: Platform Speed The last bin must be above the bottom side lobe area the bin must have a percent good value above 25% the correlation value for at least 3 beams must be above the threshold of 120 counts Locate the last valid bin for each of the speeds and fill in the table below. Last Valid Range to Bin Number Last Average RSSI Value at Last Bin Bin Date and Time of Measurement Notes: Platform Speed must be input as a measurement from the Bottom Track (if in range) or the GPS speed. Range to Last Bin is calculated as follows: ((bin size) (last bin number)) + (NF command) Average RSSI Value at Last Bin is the average of the 4 beams RSSI values in the last bin number Date and Time of Measurement is used to review these values during playback of the data The results from the above test should be compared to the specified nominal range of the system. Assuming that there are sufficient scatterers in the water, the acoustic window is not attenuating the signal, and that that the platform background noise is variable there should be a speed at which the nominal range of the system is obtained.

12 12 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The above tests confirm the ADCP is operating according to factory specifications and ready for BOTTOM TRACKING TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date Printed Customer Representative Name Date D TESTWAIVED RDI - initials Customer Representative initials

13 Bottom Tracking Testing TELEDYNE RD rnstruments A Teledyne Technologies Company The bottom tracking capability of the OS ADCP varies depending on the type of bottom (hard, soft, rock, sand, etc.), the slope of the bottom, and the speed of the vessel (back- ground noise). Before testing the Bottom Track capabilities the Water Profiling Range Test must be performed. Through the results of this test, determine the platform speed in which the range to the last valid bin obtained the specified nominal range of the OS ADCP frequency being used. Record the velocity here If it is not possible to reach the specified nominal range, determine the speed at which it allowed the best range possible. Calculate the percentage of the nominal range that was obtained by the system. Record the velocity here Record the percentage of range obtained here (actualrange/specified ranger1oo Platform Testing Setup The key to this test is to operate the system in an area where both the minimum and maximum bottom tracking range can be obtained. The platform will travel over water that is very shallow (<10 meters) to very deep (greater than the maximum bottom track range). It does not matter if the water starts deep and goes shallow or viceversa. The course of the platform must be a straight line. The platform speed must not be greater than the velocity recorded above. Computer Screen Display Setup View the raw data display of the VMDAS bottom track display window.

14 14 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company 12. Bottom Tracking Reasonableness Results Sheet Viewing the bottom track velocity data record the maximum and minimum average of the bottom track depths. Beam Number Minimum Depth (meters) Maximum Depth (metersl Beam 1 Beam 2 Beam 3 Beam 4 A PASS condition is identified if the maximum depth of the OS system is equal to the specification for the nominal bottom track range. Please note; if the system was not able to water profile to the nominal range, the bottom track range must be reduced to no more than the same percentage as the water profile loss. If the bottom track did obtain the complete range and the water profile did not then It is likely that there is Insufficient backscatter In the water to obtain the specified range. The above tests confirm the ADCP is operating according to factory specifications and ready for RINGING TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date

15 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Date Printed Customer Representative Name D TEST WAIVED RDI - initials Customer Representative initials 15

16 Ringing Testing TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The ADCP transmits an acoustic pulse into the water. The main lobe of this pulse bounces off particles in the water and the signals returned from these particles are used to calculate the velocity of the water. The main lobe of the transmitted pulse is what we are using to process and calculate a velocity. The transmitted pulse, however, is made up of many side lobes off the main lobe. These side lobes will come in contact with metal of the transducer beam itself and other items in the water. The energy from the side lobes will excite the metal of the transducer and anything bolted to the transducer. This causes the transducer and anything attached to it to resonate at the sys- tems transmit frequency. We refer to this as "RINGING". If the ADCP is in it's receive mode while the transducer is ringing then it will receive both the return signals from the water and the "ringing". Both of these signals are then processed bv the ADCP. The ringing causes bias to the velocity data. All ADCP's will "ring" for some amount of time. Therefore, each ADCP requires a blanking period (time of no data processing) to keep from processing the ringing energy. Each ADCP frequency has a different typical ringing duration. Therefore a blanking period (time of not processing data) is required at the beginning of each profile. The blanking distances required for the typical ringing period for each ADCP frequency is shown in the following table. Frequency_ 38kHz 75kHz 150kHz 300kHz 600kHz Typical Blank Period for Ringing 16 meters 8 meters 6 meters 4 meters 2 meters Ringing will bias the velocity estimation to a lower value (towards zero). However, when the platform motion is removed from the water profile data it will appear as a large velocity, which is the opposite of what it is really doing. This effect is caused because the vessel motion portion of the water profile data has been biased low (towards zero). Platform Testing Setup The key to success when performing this test will be to ensure the water velocity and direction remain stable over the entire test period of 120 minutes. This test requires that the platform be within the AOCP bottom tracking range. Use the following table to determine the optimum water depth range required. OS 38ADCP OS 75ADCP OS 150 ADCP WH Mariner 300 ADCP WH Mariner 600 ADCP meters meters meters meters meters Water Depth Requirement Platform speed must be held to a typical speed of 6-9 knots without loosing bottom tracking data for a period of 30 minutes. Some experimentation may be required to find the maximum bottom track speed for the given depths above.

17 17 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Computer Screen Display Setup The Magnitude and Direction Profile Display of the Long Term Average data (10 minute averages) will be viewed in the VMDAS program. 14. Ringing Results Sheet Unreasonable shears from bin 1 to bin 2 to bin 3 and so on should be evaluated using the Long Term average of the magnitude and direction profile. If an unreasonable shear is seen, it is most likely ringing. Therefore your blanking needs to be increased by the following formula: (bin size)* (last bin number with ringing)* 0.80 Record the results of the ringing tests in the following table. I Total Blanking Period Required' I "The total blanking period is typical blanking period plus the increased blanking period required. The above value should be used to change both the WF and NF (for the OS ADCP only) commands in all configuration files for the ADCP. The above tests confirm the ADCP is operating according to factory specifications and ready for TRANSDUCER ALIGNMENT TESTING. RD Instruments Field Service Engineer Signature Date

18 18 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Customer Representative Signature Date Printed Customer Representative Name Date D TEST WAIVED RDI - initials Customer Representative initials

19 Transducer Alignment Test TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The mounting alignment of the BB transducer to the relative position of the heading input from the vessel is critical in the velocity estimates made by the BB ADCP. If either of these are not known and corrected for it will result in both directional and velocity estimate errors water the velocity data. It is possible to confirm if the transducer alignment is correct by collecting data over the same water in several different directions. If the transducer is improperly aligned, both the magnitude and direction of the currents will appear the same in all directions that the platform travels. Platform Testing Setup The key to success on this test is that minimal water velocity and direction change over the entire test period. The following test will take a minimum of 5 hours to collect. This length of time is required in order to obtain enough data samples to reduce the noise sufficiently. This test requires that the platform be within the ADCP bot- tom tracking range, so that valid bottom track can be used, and that reliable GPS data be available (DGPS is recommended). Use the following table to determine the optimum water depth range required. OS 38ADCP OS 75 ADCP OS 150ADCP OS Mariner 300 ADCP OS Mariner 600ADCP meters meters meters meters meters Water Depth Requirement Platform speed is to be held at a constant speed. Any speed between 5-10 knots is acceptable, however once a speed is selected then the vessel should maintain that speed during the entire course. The course for this test contains a minimum of Slegs. Each leg must be a minimum of 30 minutes long (1-2 hours per leg is the optimal time). The course of ship travel is shown in the below figure. All data must be collected in beam coordinates Minimum of 'i Minutes Per Minutes Per Leg Minimum Time 4.5 to 7 l Minutes Per '"T"" LJU

20 20 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Computer Screen Display Setup View the VMDAS ship track display of bin 3 with the bottom track reference. The Long Term Average (5 minute averages) data should be viewed. 16. Transducer Alignment Results Sheet A PASS condition is identified if the velocities in each of the ship track plotted directions has the reasonably the same magnitude and direction. It is common to see some wild velocity magnitude and directions. This happens as a result of the effects of the turn on the gyro heading device or the latency of the heading updates for a GPS heading input. If the direction of the currents is not the same in each of the directions then it will be necessary to enter in a transducer misalignment angle. The 5 minute averages of both GPS and Bottom Track Direction are compared in at least 2 of the legs traveled. An average direction along each leg is calculated for both the GPS and Bottom Track data. The difference in the average directions is the misalignment angle. Record the results of this portion of the Transducer Alignment with Bottom Track Reference with the formula: Misalignment Angle= (GPS Average Direction)- (Bottom Track Average Direction) I Misalignment Angle Required Degrees I Changing the transducer alignment angle, reprocessing the data, and finally playing back the same data file again allows you to confirm if the misalignment angle correction is correct. A pass condition is if the velocities in each of the ship track plotted directions has the reasonably the same magnitude and direction. It is common to see some wild velocity magnitude and directions. Record the results of the verification of the Transducer Alignment with Bottom Track Reference: I Alignment Verification Pass/Fail I Change the data display reference from bottom track to the navigation data in the VMDAS program. A pass condition exists if little to no change in the velocity magnitude and direction occurred when switching to the navigation data reference Record the results of this portion of the Transducer Alignment with Navigation Reference: I Navigation Verification Pass/Fail I

21 21..._..._TELEDYNE ll' RD INSTRUMENTS A Teledyne Technologies Company Sea Acceptance Test Results Sheet TEST Interference Testing RESULT Interference Found Yes/No Interference Testing This test only states whether interference is present. If interference is found then the equipment causing the interference must not be operated with the ADCP or user must synchronize the ADCP and the other device so that interference is avoided. Interference does not result in a failure of this Sea Acceptance Test. This test is for operational information only. TEST Water Profile Range Testing RESULT: Range Pass/Fail Specifications Range Testing This test determines which speed the ADCP will provide profiling range to the factory specification. Ship speed, backscatter in the water column, ship motion, and other environmental factors will affect the range of the system. The ADCP is considered to be passing this test if it either meets the profiling range specification at least at a single speed and/or the range is reasonable given the other conditions. TEST Bottom Profile Range Testing RESULT: Range Pass/Fail Specifications Range Testing This test determines which speed the ADCP will provide bottom tracking range to the factory specification. Ship speed, backscatter in the water column, ship motion, and other environmental factors will affect the range of the system. The ADCP is considered to be passing this test if it either meets the profiling range specification at least at a single speed and/or the range is reasonable given the other conditions. TEST Ringing Testing RESULT Range of Ringing Ringing Test This test determines the minimum blanking required. The results of this test do not determine a pass/fail condition but only the minimum setup requirements for proper operation.

22 22 4TELEDYNE II" RD INSTRUMENTS A Teledyne Technologies Company TEST Transducer Ar gnment Tesfmg RESULT: Transducer Alignment Angle Transducer Alignment Test This test determines the transducer alignment angle required. The results of this test do not determine a pass/fail condition but only the setup requirements for proper operation. The above tests confirm the ADCP is operating according to factory specifications and ready for deployment. RD Instruments Field Service Engineer Signature Date Signed Customer Representative Signature Date

23 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Customer Representative Signature Date Printed Customer Representative Name Date 23

24 4.2 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company ACCEPTANCE TESTING FOR AN 150KHZ ADCP MOUNTED ON A MOVING PLATFORM Introduction This portion of the testing plan is intended to test ADCP operations at sea and confirm it adheres to RDI factory specifications. This procedure assumes that the Dockside Testing procedure has been performed and all testing criteria have passed or been confirmed to be operational. The following tests will not obtain favorable results if the previously mentioned testing has not been performed. The performance of any ADCP relies greatly upon the installation into any platform. Therefore, the system must be tested at sea to understand the effects of the platform on the ADCP performance. At Sea Testing includes tests for Acoustic Interference, Profiling Range, and Profiling Reasonableness testing. For each of these tests the following Equipment and ADCP setup requirements are recommended. Equipment Required o Ocean Surveyor 38kHz, 75kHz, or 150kHz ADCP or WH Mariner 300kHz ADCP o Computer o VMDAS Program o WINADCP Program o Navigation Interface Connected o Heading Interface Connected VMDAS Setup Table 5 minutes 10 minutes ADCP Setup Table OS 38ADCP OS 75ADCP OS 150ADCP WH 300 Mariner ADCP WH600 Mariner ADCP WPO WPO WPO WP1 WP1 NP1 NP1 NP1 WS0400 WS0200 NS2400 NS1600 NS0800 WF0600 WF0400 NF1600 NF1000 NF0800 WN065 WN065 24

25 25 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company NN065 NN065 NN065 BP001 BP001 BP001 BP001 BP001 BX2000 BX1250 BX20000 BX15000 BX10000 WD WD ND ND ND TP TPOOOOSO TP TP TP TE TE TE TE TE EZ EZ EZ EZ EZ EXOOOOO EXOOOOO EXOOOOO EXOOOOO EXOOOOO EDOOOOO EDOOOOO EDOOOOO EDOOOOO EDOOOOO

26 26 7. Interference Testing TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The ADCP transmits and receives acoustic signals from the water. If other sonar devices are operating on the platform at the same time as the ADCP it is possible for those signals to bias the ADCP data. Therefore, all ADCP's must be tested to ensure that they are not receiving interference from other sonar equipment on board the vessel. The following Interference Test will determine if additional acoustic devices on board the vessel are interfering with the ADCP receive signal. Platform Testing Setup This test requires that the platform be navigated to a body of water that exceeds the maximum expected profiling range of the ADCP. Use the following table to determine the minimum water depth required. OS 38 ADCP OS 75 ADCP OS 150ADCP WH Mariner 300 ADCP WH Mariner 200 ADCP 1200 meters 1000 meters 800 meters 300 meters 150 meters Minimum Water Depth Requirement Platform speed for this test must be DRIFTING. The motors may be running if required for platform safety. The test sequence starts with ALL sonar and non-essential electronic equipment turned off. Only the ADCP should be on for the first test. This test will establish a base line for the interference and is criticalto the rest of the tests. After a 10 minute period the first sonar device is turned on, transmission started, and the data is reviewed for interference terms.' At the end of this 10 minute period the first sonar device is turned off and the next sonar device is turned on and started pinging for 10 minutes. This process repeats for each of the sonar devices. Computer Screen Display Setup Ensure VMDAS is configured to have WinADCP enabled in the user Exit" tab. The RAW data (.ENR files) being collected by the VMDAS program will displayed in the WINADCP program contour plots for echo intensity data.this data will show the single ping return levels. Note: This Interference Test shall be ran in both Narrowband and Broadband mode.

27 27 4 TELEDYNE,. RD INSTRUMENTS A Teledyne Technologies Company 8. Interference Results Sheet If there is interference in the area of transmit/receive, the echo intensity data will show spurious echo intensity jobs. An example of what interference may look like is shown in the Figure below..!9 S l 1 ro 722 Sub 1 tom. 1 99Al :.I 99m/ S[IJ Interference will appear as periodic green blocks in the data set. Please note: interference will be lost in the upper part of the profile. However, it can be seen clearly seen once the system reaches the noise floor (point where there is no longer signals being returned from the water). Interference seen anywhere within the echo intensity profile data will result in a bias to the ADCP data. On the following page is a table to log the Interference Test Results.

28 28 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Device Type and Manufacturer Operating Frequency Pass or Fail ADCP only. No Sonar s or Equipment Running Interference Test Results Table

29 29 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The above tests confirm the ADCP is operating according to factory specifications and ready for WATER PROFILE RANGE TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date Printed Customer Representative Name Date D TESTWAIVED RDJ - initials Customer Representative initials

30 30 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company 9. Water Profile Range Testing The range of any ADCP is directly dependent on the level of backscattering material in the water, the transmit power into the water, the received sensitivity, and the level of the background noise. Each of these effects the range of the system in different ways but in the end can result in reduced or extended range. ADCP's transmit power and receive sensitivity are fixed based. However they may be effected by the installation of an acoustic window in front of the transducer because a window will absorb sound both transmitted by the ADCP and the sound returned from backscatter in the water. The volume of the backscatter in the water will also affect the range. All specifications for range assume that there is a certain amount of backscatter in the water. The backscatter volume is not controllable in any way. Background noise varies as the platform's speed increases or decreases. There are 2 types of noise created by the moving platform; first, there is the noise due to propeller and engines; and second, there is the noise created by the rushing water across the platform and ADCP transducer. This test is used to determine the effects of the background noise on the range of the ADCP. This information can be used to determine the optimum speed of the platform to obtain the desired range required. Platform Testing Setup This test requires that the platform be in water deeper than the ADCP's maximum expected profiling range. Use the following table to determine the minimum water depth required. OS 38 ADCP OS 75 ADCP OS 150 ADCP WH Mariner 300 WH Mariner 600 ADCP 1200 meters 1000 meters 600 meters 200 meters 100 meters Minimum Water Depth Requirement Platform course for this test MUST be a continuous straight line. The speed of the platform will be varied during this test. At each speed the system will be set to collect data for a minimum of 10 minutes. The following table lists the recommended speeds. Speed 1 Sp_eed 2 Speed 3 Speed 4 Speed 5 SQ_eed 6 Drifting 3 knots 6 knots 9 knots 12 knots Maximum Speed Platform Speed Computer Screen Display Setup The Tabular Display of the Long Term Average data (10 minute averages) will be viewed in the VMDAS program.

31 Range Results Sheet TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The data collected in the long term average (10 minutes) tabular display will be used to determine the maximum range of the ADCP. The maximum profiling range of the system is determined by locating the last valid bin and then using that ping to determine the range. To determine the last valid bin the following criterion is used: The last bin must be above the bottom side lobe area the bin must have a percent good value above 25% the correlation value for at least 3 beams must be above the threshold of 120 counts Locate the last valid bin for each of the speeds and fill in the table below. Last Valid Range to Bin Number Last Platform Speed Average RSSI Value at Last Bin Bin Date and Time of Measurement Notes: Platform Speed must be input as a measurement from the Bottom Track (if in range) or the GPS speed. Range to Last Bin is calculated as follows: ((bin size) (last bin number)) + (NF command) Average RSSI Value at Last Bin is the average of the 4 beams RSSI values in the last bin number Date and Time of Measurement is used to review these values during playback of the data The results from the above test should be compared to the specified nominal range of the system. Assuming that there are sufficient scatterers in the water, the acoustic window is not attenuating the signal, and that that the platform background noise is variable there should be a speed at which the nominal range of the system is obtained.

32 32 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The above tests confirm the ADCP is operating according to factory specifications and ready for BOTTOM TRACKING TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date Printed Customer Representative Name Date D TESTWAIVED RDI - initials Customer Representative initials

33 Bottom Tracking Testing TELEDYNE RD rnstruments A Teledyne Technologies Company The bottom tracking capability of the OS ADCP varies depending on the type of bottom (hard, soft, rock, sand, etc.), the slope of the bottom, and the speed of the vessel (back- ground noise). Before testing the Bottom Track capabilities the Water Profiling Range Test must be performed. Through the results of this test, determine the platform speed in which the range to the last valid bin obtained the specified nominal range of the OS ADCP frequency being used. Record the velocity here If it is not possible to reach the specified nominal range, determine the speed at which it allowed the best range possible. Calculate the percentage of the nominal range that was obtained by the system. Record the velocity here Record the percentage of range obtained here (actualrange/specified ranger1oo Platform Testing Setup The key to this test is to operate the system in an area where both the minimum and maximum bottom tracking range can be obtained. The platform will travel over water that is very shallow (<10 meters) to very deep (greater than the maximum bottom track range). It does not matter if the water starts deep and goes shallow or viceversa. The course of the platform must be a straight line. The platform speed must not be greater than the velocity recorded above. Computer Screen Display Setup View the raw data display of the VMDAS bottom track display window.

34 34 4 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company 12. Bottom Tracking Reasonableness Results Sheet Viewing the bottom track velocity data record the maximum and minimum average of the bottom track depths. Beam Number Minimum Depth (meters) Maximum Depth (metersl Beam 1 Beam 2 Beam 3 Beam 4 A PASS condition is identified if the maximum depth of the OS system is equal to the specification for the nominal bottom track range. Please note; if the system was not able to water profile to the nominal range, the bottom track range must be reduced to no more than the same percentage as the water profile loss. If the bottom track did obtain the complete range and the water profile did not then It is likely that there is Insufficient backscatter In the water to obtain the specified range. The above tests confirm the ADCP is operating according to factory specifications and ready for RINGING TESTING. RD Instruments Field Service Engineer Signature Date Customer Representative Signature Date

35 35 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Printed Customer Representative Name Date D TEST WAIVED RDI - initials Customer Representative initials

36 Ringing Testing TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The ADCP transmits an acoustic pulse into the water. The main lobe of this pulse bounces off particles in the water and the signals returned from these particles are used to calculate the velocity of the water. The main lobe of the transmitted pulse is what we are using to process and calculate a velocity. The transmitted pulse, however, is made up of many side lobes off the main lobe. These side lobes will come in contact with metal of the transducer beam itself and other items in the water. The energy from the side lobes will excite the metal of the transducer and anything bolted to the transducer. This causes the transducer and anything attached to it to resonate at the sys- tems transmit frequency. We refer to this as "RINGING". If the ADCP is in it's receive mode while the transducer is ringing then it will receive both the return signals from the water and the "ringing". Both of these signals are then processed bv the ADCP. The ringing causes bias to the velocity data. All ADCP's will "ring" for some amount of time. Therefore, each ADCP requires a blanking period (time of no data processing) to keep from processing the ringing energy. Each ADCP frequency has a different typical ringing duration. Therefore a blanking period (time of not processing data) is required at the beginning of each profile. The blanking distances required for the typical ringing period for each ADCP frequency is shown in the following table. Frequency_ 38kHz 75kHz 150kHz 300kHz 600kHz Typical Blank Period for Ringing 16 meters 8 meters 6 meters 4 meters 2 meters Ringing will bias the velocity estimation to a lower value (towards zero). However, when the platform motion is removed from the water profile data it will appear as a large velocity, which is the opposite of what it is really doing. This effect is caused because the vessel motion portion of the water profile data has been biased low (towards zero). Platform Testing Setup The key to success when performing this test will be to ensure the water velocity and direction remain stable over the entire test period of 120 minutes. This test requires that the platform be within the AOCP bottom tracking range. Use the following table to determine the optimum water depth range required. OS 38ADCP OS 75ADCP OS 150 ADCP WH Mariner 300 ADCP WH Mariner 600 ADCP meters meters meters meters meters Water Depth Requirement Platform speed must be held to a typical speed of 6-9 knots without loosing bottom tracking data for a period of 30 minutes. Some experimentation may be required to find the maximum bottom track speed for the given depths above.

37 37 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Computer Screen Display Setup The Magnitude and Direction Profile Display of the Long Term Average data (10 minute averages) will be viewed in the VMDAS program. 14. Ringing Results Sheet Unreasonable shears from bin 1 to bin 2 to bin 3 and so on should be evaluated using the Long Term average of the magnitude and direction profile. If an unreasonable shear is seen, it is most likely ringing. Therefore your blanking needs to be increased by the following formula: (bin size)* (last bin number with ringing)* 0.80 Record the results of the ringing tests in the following table. I Total Blanking Period Required' I "The total blanking period is typical blanking period plus the increased blanking period required. The above value should be used to change both the WF and NF (for the OS ADCP only) commands in all configuration files for the ADCP. The above tests confirm the ADCP is operating according to factory specifications and ready for TRANSDUCER ALIGNMENT TESTING. RD Instruments Field Service Engineer Signature Date

38 38 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Customer Representative Signature Date Printed Customer Representative Name Date D TEST WAIVED RDI - initials Customer Representative initials

39 Transducer Alignment Test TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company The mounting alignment of the BB transducer to the relative position of the heading input from the vessel is critical in the velocity estimates made by the BB ADCP. If either of these are not known and corrected for it will result in both directional and velocity estimate errors water the velocity data. It is possible to confirm if the transducer alignment is correct by collecting data over the same water in several different directions. If the transducer is improperly aligned, both the magnitude and direction of the currents will appear the same in all directions that the platform travels. Platform Testing Setup The key to success on this test is that minimal water velocity and direction change over the entire test period. The following test will take a minimum of 5 hours to collect. This length of time is required in order to obtain enough data samples to reduce the noise sufficiently. This test requires that the platform be within the ADCP bot- tom tracking range, so that valid bottom track can be used, and that reliable GPS data be available (DGPS is recommended). Use the following table to determine the optimum water depth range required. OS 38ADCP OS 75 ADCP OS 150ADCP OS Mariner 300 ADCP OS Mariner 600ADCP meters meters meters meters meters Water Depth Requirement Platform speed is to be held at a constant speed. Any speed between 5-10 knots is acceptable, however once a speed is selected then the vessel should maintain that speed during the entire course. The course for this test contains a minimum of Slegs. Each leg must be a minimum of 30 minutes long (1-2 hours per leg is the optimal time). The course of ship travel is shown in the below figure. All data must be collected in beam coordinates Minimum of 'i Minutes Per Minutes Per Leg Minimum Time 4.5 to 7 l Minutes Per '"T"" LJU

40 40 TELEDYNE RD INSTRUMENTS A Teledyne Technologies Company Computer Screen Display Setup View the VMDAS ship track display of bin 3 with the bottom track reference. The Long Term Average (5 minute averages) data should be viewed. 16. Transducer Alignment Results Sheet A PASS condition is identified if the velocities in each of the ship track plotted directions has the reasonably the same magnitude and direction. It is common to see some wild velocity magnitude and directions. This happens as a result of the effects of the turn on the gyro heading device or the latency of the heading updates for a GPS heading input. If the direction of the currents is not the same in each of the directions then it will be necessary to enter in a transducer misalignment angle. The 5 minute averages of both GPS and Bottom Track Direction are compared in at least 2 of the legs traveled. An average direction along each leg is calculated for both the GPS and Bottom Track data. The difference in the average directions is the misalignment angle. Record the results of this portion of the Transducer Alignment with Bottom Track Reference with the formula: Misalignment Angle= (GPS Average Direction)- (Bottom Track Average Direction) I Misalignment Angle Required Degrees I Changing the transducer alignment angle, reprocessing the data, and finally playing back the same data file again allows you to confirm if the misalignment angle correction is correct. A pass condition is if the velocities in each of the ship track plotted directions has the reasonably the same magnitude and direction. It is common to see some wild velocity magnitude and directions. Record the results of the verification of the Transducer Alignment with Bottom Track Reference: I Alignment Verification Pass/Fail I Change the data display reference from bottom track to the navigation data in the VMDAS program. A pass condition exists if little to no change in the velocity magnitude and direction occurred when switching to the navigation data reference Record the results of this portion of the Transducer Alignment with Navigation Reference: I Navigation Verification Pass/Fail I

41 41..._..._TELEDYNE ll' RD INSTRUMENTS A Teledyne Technologies Company Sea Acceptance Test Results Sheet TEST Interference Testing RESULT Interference Found Yes/No Interference Testing This test only states whether interference is present. If interference is found then the equipment causing the interference must not be operated with the ADCP or user must synchronize the ADCP and the other device so that interference is avoided. Interference does not result in a failure of this Sea Acceptance Test. This test is for operational information only. TEST Water Profile Range Testing RESULT: Range Pass/Fail Specificstions Range Testing This test determines which speed the ADCP will provide profiling range to the factory specification. Ship speed, backscatter in the water column, ship motion, and other environmental factors will affect the range of the system. The ADCP is considered to be passing this test if it either meets the profiling range specification at least at a single speed and/or the range is reasonable given the other conditions. TEST Bottom Profile Range Testing RESULT: Range Pass/Fail Specificstions Range Testing This test determines which speed the ADCP will provide bottom tracking range to the factory specification. Ship speed, backscatter in the water column, ship motion, and other environmental factors will affect the range of the system. The ADCP is considered to be passing this test if it either meets the profiling range specification at least at a single speed and/or the range is reasonable given the other conditions. TEST Ringing Testing RESULT Range of Ringing Ringing Test This test determines the minimum blanking required. The results of this test do not determine a pass/fail condition but only the minimum setup requirements for proper operation.

42 42 4TELEDYNE II" RD INSTRUMENTS A Teledyne Technologies Company TEST Transducer Ar gnment Tesfmg RESULT: Transducer Alignment Angle Transducer Alignment Test This test determines the transducer alignment angle required. The results of this test do not determine a pass/fail condition but only the setup requirements for proper operation. The above tests confirm the ADCP is operating according to factory specifications and ready for deployment. RD Instruments Field Service Engineer Signature Date Signed Customer Representative Signature Date

43 43 4 TELEDYNE Ill" RD INSTRUMENTS A Teledyne Technologies Company The addendum portion of this document is for the purposes of outlining any outstanding testing, configuration, or operational conditions that may exist with the manufactured supplied product. CUSTOMER REPRESENTATIVE ADDENDUM

44 Customer Representative Signature Date Printed Customer Representative Name Date 44

45 4.3 KONGSBERG DEFENCE SYSTEMS Sensor Systems N-7500 Stjørdal Norway Telephone Fax Document number: SATP Title : TOPAS PS 18 Parametric Sub-Bottom Profiler Sea Acceptance Test Procedure Rev. Date Prepared by Approved ECO no. Pages MK 8 A 29/08/2006 HA 9 B 01/10/2012 JD 8 THIS DOCUMENT IS THE PROPERTY OF KONGSBERG DEF ENCE & AEROSPACE AS This document, and any authorised reproduction thereof, must not be used in any way against the interest of Kongsberg Defence & Aerospace AS.

46 The contents must not be published or disclosed to a third party, in whole or in part, without the written consent of Kongsberg Defence & Aerospace AS. Any authorised reproduction, in whole or in part, must include this legend. 46

47 TABLE OF CONTENTS 1. Document history y Details GENERAL REF ERENCES TEST EQUIPMENT LIST OF ITEMS CONFIGURATION INTERCONNECTION/ARRANGEMENT TEST P ROCEDURE Test of transceiver TOPAS PS Sensor inputs COMMENTS... 8 Proprietary rights/reproduction; see cover

48 1. DOCUMENT HISTORY Date Rev Changes/Comment Original issue. s 01/10/2012 B Minor modifications 2. DETAILS Vessel/Project: Customer: Date of approval: Water depth: Survey: 3. GENERAL The purpose of this test is to verify that the system is functioning according to specifications after installation on board the vessel, and also to serve as a record of the successful completion of the TOPAS installation. 4. REFERENCES Harbor Acceptance Test documentation HATP TEST EQUIPMENT No specific additional test equipment is required to perform the test. Proprietary rights/reproduction; see cover

49 6. LIST OF ITEMS The number of items to be tested in the list below can vary as it depends on the equipment included in the current installation. Use column 2 to indicate which items that are included for this particular delivery. List of items to be tested Item Incl. Equipment Registratio n 1 PS 18 Transducer Unit On/Off Box PS 18 Transceiver Post Processing SW 5 MR 18 Multi-channel receiver Motion Reference Unit (MRU 7 8 ) 9 10 Serial number Proprietary rights/reproduction; see cover

50 7. CONFIGURATION See Factory Acceptance Test and Harbour Acceptance Test results for this specific delivery. 8. INTERCONNECTION/ARRANGEMENT No special arrangement is required to perform the tests. The system shall be installed for normal operation on board the vessel and all external units shall be connected (navigation computer and VRU). Proprietary rights/reproduction; see cover

51 9. TEST PROCEDURE The tests are performed by means of the tables in the following pages. Fill in the results in the appropriate column and sign at the bottom of each page. 9.1 Test of transceiver TOPAS PS 18 The system is connected to all sensors and on line. Test site should be in a reasonable flat area with recommended water depth in the range between 500 and 3000 meters. Test and Check List Item(s) to be tested All Function to be tested Verify position from navigation computer on console. All Verify external depth on console. OK! All All All All All All System test: Set up the following system parameters: Ping interval: 1000 to 4000 ms, CW mode with 3 khz secondary frequency; level: 0 db or 2-5kHz/10mS chirp and 0 db level in deep or noisy areas Ch1: Trace length: 200mS. Adjust delay, gain and processing. Display data on monitor. Ch2: Trace length: 100mS. Adjust delay, gain and processing. Display data on monitor. Optional! Ch3: Trace length: 100mS. Adjust delay, gain and processing. Display data on monitor. Optional! Enable bottom tracking. Verify depth on monitor Test the heave compensation. Verify compensation by enabling/disabling the compensation. Set external trig mode. Verify that system is trigged. Require sync unit or similar installed onboard Expected Test Results OK! OK! OK! OK! OK! OK! OK! Measured Result Performed by (date/sign) Witnessed by (date/sign) PreSAT: SAT: PreSAT: SAT: Proprietary rights/reproduction; see cover

52 9.2 Sensor inputs This ship will have the following sensors (mark and fill in necessary information): 1. VRU type: o Seatex MRU-5 o Seatex MRU-6 o Seapath 200/300 o Other TOPAS PS 18 is set up to read VRU-data on a RS422/RS232 port in EM3000 format. 2. Navigation Input: Format of navigation string. o NMEA 183 o Simrad 90 o Other Item Sensor Test Result 1 VRU 2 Navigation 3 Performed by (date/sign) Witnessed by (date/sign) PreSAT: SAT: PreSAT: SAT: Proprietary rights/reproduction; see cover

53 10. COMMENTS SAT Performed By: Signature: SAT Witnessed By: Signature: Date: Proprietary rights/reproduction; see cover

54 4.4 Sea Acceptance Test Product: Produkt: EM 710 Multibeam Echo Sounder Product reg.no: Produkt reg.nr: Doc.reg.no: Dokument reg.nr: Doc.archive no: Dokument arkiv-nr: AA000 Rev.A Created by: Rev.A Laget av: Rev.A Controlled by: Rev.A Sjekket av: Rev.A Approved by: Rev.A Godkjent av: KEN/BHL BHL KEN Revision: Revisjon: A B C D E F Date: Dato: April 18, Jan 2011 Contents 1 DOCUMENT HISTORY INTRODUCTION REFERENCES TEST EQUIPMENT LIST OF ITEMS CONFIGURATION SOFTWARE INTERCONNECTION/ARRANGEMENT TEST PROCEDURE Test of Interfaces Sensor Offset/Calibration Survey Noise and Sea Conditions Performance Assessment TESTIMONIAL... 10

55 1 DOCUM ENT HISTORY Rev Description of changes A Original issue. KTU Created by 2 INTRODUCTION The purpose of this procedure is to verify that the system as installed is fully functional at sea, and to serve as a record of the successful completion of the Sea Acceptance Test. It is to be followed to verify correct functioning of the multibeam echo sounder and the various external sensors or systems as an integrated mapping system. It will also verify that the system interfaces and peripherals are functional. The sea trials shall establish: that the different EM 710 units work properly at sea that the heave, roll and pitch signals are correctly used that the heading signal is correctly used that the sound speed input data are correctly used that the positioning system data are correctly used that the system is capable of providing good depth data consistently that the system during operation produces digital data to its internal storage devices and, if available, to an external logging system connected via Ethernet The Sea Acceptance Test shall consist of a verification of correct interfacing of external sensors, a calibration of external sensor offsets and time delays, a test survey, and assessment of the data from the test survey. In addition, as far as time and external conditions allow, limitations on system performance as a function of water depth, vessel speed and sea state shall be established. 3 REFERENCES Factory and Harbour Acceptance Test records. 4 TEST EQUIPMENT No special test equipment is required for the Sea Acceptance Test, but all sensors normally needed for surveying with a Multibeam echo sounder shall be available. Proprietary rights/reproduction; see cover

56 5 LIST OF ITEMS The items which are to be tested, will depend on the particular configuration. Use the manufacturer type number column to indicate which items are actually included in this particular delivery or furnished by the owner to be used with the system. List of items to be tested Item Manufacturer, type and/or registration number Equipment 1 EM 710 TRANSCEIVER UNIT 2 HYDROGRAPHIC WORKSTATION 3 HEADING SENSOR 4 MOTION SENSOR 5 FIXED SOUND SPEED SENSOR 6 SOUND SPEED PROFILE SENSOR 7 POSITIONING SYSTEM 8 9 Serial number 6 CONFIGURATION The modules and circuit boards included in the system and their serial numbers were noted in the Factory and Harbour Acceptance tests. Any replacement modules or circuit boards since the HAT must be noted. Replacement list Item Equipment Registration number Serial number Proprietary rights/reproduction; see cover

57 7 SOFTW ARE The system software version must be noted, including the subsystems, and reflecting any changes made during the trials. Item Equipment Version number 1 BSP 67B master version 2 BSP 67B slave version 3 CPU version 4 DDS version 5 RX 32 version 6 TX 36 version 7 SIS Software version (press the icon located on the bottom line in the SIS window) Version date 8 INTERCONNECTION/ARRANGEMENT The system shall have been installed according to the Installation Manual. Note the locations of the transducers, motion sensor(s) and positioning system(s) as entered on the Operator Station: X (forward pos) Y (starboard pos) Z (downwards) TX transducer RX transducer Motion sensor no 1 Motion sensor no 2 Positioning system no 1 Positioning system no 2 Positioning system no 3 Pos. system Ethernet Waterline downward NA NA Note the transducer alignment angles as entered on the Operator Station: Roll Pitch Heading TX transducer RX transducer Proprietary rights/reproduction; see cover

58 9 TEST PROCEDURE The test will be documented through the tables on the following pages. The tests shall generally be done in the following order: Interface tests Calibration Survey Data assessment Assessment of the survey data collected should preferably be done on board. Note that the noise measurements and test of performance with regard to depth and/or sea state are to be run in the order which best suits the conditions during the test period. It is not expected that many different conditions will be encountered during the limited time available for the sea acceptance test. However, it is strongly advised that as different conditions are encountered during later use of the system, the system performance as a function of external conditions is noted, for example in this record. This will be valuable for later use in survey planning and in ensuring the most efficient use of the system. 9.1 Test of Interfaces Tests of the external sensor interfaces should have been run during the Harbour Acceptance test. However, these tests were necessarily limited (static only), and may not even have been done due to non-availability or non-functionality of external sensors. Thus the data from the external sensors should be observed on the system display during vessel maneuvering, and verified for correctness (positions and clock) or correct sign and/or reasonable magnitude (heave, roll, pitch, heading and sound speed). Data will be logged during the test, all connected hard-copy devices should be employed, and sound speed profiles loaded into the system. Observe that this is functional. Fill in the table below to record this. Proprietary rights/reproduction; see cover

59 Test no. Function to be tested 1 Position input 2 External clock input 3 Transducer depth sound speed input 4 Sound speed profile input 5 Heading input 6 Motion data input 7 Data output to internal storage 8 Data output to external storage 9 Data output to external Ethernet 10 Postscript printer 11 Printer/plotter/recorder output Test result Notes 9.2 Sensor Offset/Calibration The offset or zero bias of the roll, pitch and heading sensors and the time delay of the position system(s) are to be measured or estimated before leaving port if possible (this is especially important with regard to the heading sensor). A calibration of these offsets shall be performed at sea as the second part of the test in accordance with the procedures given in the Operator Manual. Finally, these offsets shall be estimated from the final test survey. Fill in the table below with the offsets as entered into the Operator Station: Roll offset system 1 Roll offset system 2 Pitch offset system 1 Pitch offset system 2 Heading offset system 1 Heading offset system 2 Position time delay system 1 Position time delay system 2 Position time delay system 3 Port Estimate Calibration result Final Estimate Note the positioning system type used during the sea acceptance test and its estimated accuracy: Positioning system type 1:... Estimated accuracy for position system:... Positioning system type 2:... Estimated accuracy for position system:... Positioning system type 3:... Estimated accuracy for position system:... Proprietary rights/reproduction; see cover

60 9.3 Survey The integrity of the total survey system consisting of the multibeam echo sounder as installed on the vessel, motion sensor, heading sensor, sound speed sensor(s), and positioning system(s) shall be assessed by doing a survey of a limited area and inspecting the collected data. The result should be compared against the specified accuracy of the echo sounder, taking into account the precision of the external sensors, and any limitations imposed by the vessel and its handling. Note that this test is not designed to measure the accuracy of the echo sounder itself, as this would require a much more extensive test period, and has been done on previous system installations. The sea acceptance test s main part will be a sensor calibration followed by a system assessment survey in the calibration area. The area used for the sea trials should thus consist at least partly of a relatively flat bottom and partly of a significant slope as required for a calibration in accordance with the guidelines for calibration as given in the Operator Manual. In case this is not possible the calibration of the various sensors must be run in separate areas while the final assessment survey should be run in the flat part used for roll calibration. The depth should then ideally be in the m range (not critical). Five parallel lines should be run with line spacing equal to about one quarter of the achieved coverage in the actual area. Neighboring lines should be run in opposite directions. The line length should be in the order of twice the achieved coverage. A sixth line should be run perpendicular to and across the five previous lines. Assess the data with the system s grid display using a grid cell size giving about soundings per cell. Using the various display options, investigate the frequency and magnitude of outliers, discrepancies between lines, and depth differences within cells. Use also the calibration profile displays to assess any remaining errors due to roll offset or sound speed profile problems. If the performance of the system is not according to expectation, describe the results in the Comment section below, otherwise note that the system performance is accepted. Any un-resolvable performance problems should be further investigated and quantified with a post-processing system such as Neptune from Kongsberg. Note the area with positions and depths where the Customer Acceptance Test has been performed: CAT area:... CAT position:... CAT depth:... Proprietary rights/reproduction; see cover

61 9.4 Noise and Sea Conditions Performance Assessment During the sea acceptance test, the performance of the whole system shall be assessed. The important factors limiting achievable accuracy and coverage are noise (vessel and environmental) and sea state. With heavy seas it is to be expected that the performance will also depend upon vessel heading with respect to wave direction. On some vessels the noise level at particular speeds and propeller revolutions may also affect coverage. It is recommended to assess achieved coverage as a function of environmental parameters both during the sea acceptance test and later operation. The results should be entered in the table below, both to document conditions during the test and later to have a record of the system's performance according to external conditions. The noise experienced by the system may be measured from the Operator Station as described in the Operator Manual. Several measurements should be taken and the result averaged before noting it in the table below: Date Depth (m) Sea State Heading Against Waves Speed RPM Noise Comments The coverage is assessed by observing the swath width on the Operator Station on a reasonably flat bottom. The average of several pings and any occurrence of missed pings should be noted in the table below: Proprietary rights/reproduction; see cover

62 Date Depth (m) Sea State Heading Against Waves Speed (kn) RPM Abs. coeff. Coverage (m) Missing Pings, Comments Proprietary rights/reproduction; see cover

63 10 TESTI M ONIAL The SEA ACCEPTANCE TEST for the EM 710, for. has been performed according to the test procedure. The SAT approval is only valid if the test is performed by an engineer certified by Kongsberg Martime A/S. The test is: Accepted / Not accepted (Delete as appropriate) Remarks: Test performed by Position Date (Please use capital letters).. Test accepted by Position Date (Please use capital letters).... Signatures: Proprietary rights/reproduction; see cover

64 4.5 Sea Acceptance Test Product: Produkt: EM 302 Multibeam Echo Sounder Product reg.no: Produkt reg.nr: Doc.reg.no: Dokument reg.nr: Doc.archive no: Dokument arkiv-nr: Rev.A Created by: Rev.A Laget av: Rev.A Controlled by: Rev.A Sjekket av: Rev.A Approved by: Rev.A Godkjent av: KTU KEN Revision: Revisjon: A B C D E F Date: Dato: Feb 18, Jan 2011 Contents 1 DOCUMENT HISTORY INTRODUCTION REFERENCES TEST EQUIPMENT LIST OF ITEMS CONFIGURATION SOFTWARE INTERCONNECTION/ARRANGEMENT TEST PROCEDURE Test of Interfaces Sensor Offset/Calibration Survey Noise and Sea Conditions Performance Assessment TESTIMONIAL... 10