R2Sonic 2026 - Page 10

Page 10 of 254
Version
6.3
Rev
r012
Date
05-11-2022
Part No. 96000001
8.6.4 Distance ....................................................................................................................... 150
8.6.5 Deploying and recovering the Sound Velocity Probe ................................................. 150
9 APPENDIX III: Multibeam Surveying .................................................................................. 153
9.1 Introduction ......................................................................................................................... 153
9.2 Survey Design ...................................................................................................................... 153
9.2.1 Line Spacing ................................................................................................................. 153
9.2.2 Line Direction .............................................................................................................. 153
9.2.3 Line Run-in .................................................................................................................. 154
9.3 Record Keeping ................................................................................................................... 154
9.3.1 Vessel Record .............................................................................................................. 154
9.3.2 Daily Survey Log .......................................................................................................... 155
10 APPENDIX IV: Offset Measurements .................................................................................. 159
10.1 Lever Arm Measurement – Offsets ..................................................................................... 159
10.2 Vessel Reference System ..................................................................................................... 159
10.3 Measuring Offsets ............................................................................................................... 160
10.3.1 Sonic MBES Acoustic Centre ....................................................................................... 160
10.3.2 Horizontal Measurement ............................................................................................ 160
10.3.3 Vertical Measurement ................................................................................................ 161
11 APPENDIX V: The Patch Test.............................................................................................. 163
11.1 Introduction ......................................................................................................................... 163
11.2 The orientation of the Sonic MBES Sonar Head .................................................................. 163
11.3 Patch Test Criteria ............................................................................................................... 164
11.3.1 Latency Test ................................................................................................................ 164
11.3.2 Roll Test ....................................................................................................................... 165
11.3.3 Pitch Test ..................................................................................................................... 166
11.3.4 Yaw Test ...................................................................................................................... 167
11.4 Solving for the Patch Test.................................................................................................... 168
11.5 History ................................................................................................................................. 168
11.6 Basic data collection criteria ............................................................................................... 169
11.7 Patch Test data collection error areas ............................................................................... 169
11.7.1
Positioning .................................................................................................................. 169