3-20
BATS
0018257_REV_A
3.3.2
Hydrophone X and Y Offsets and Hydrophone Depth
Hydrophone Offsets reference the target position to Vessel’s Pitch and Roll Center and correct for the
hydrophone’s dynamic motion. Hydrophone motion is due to the pitching and rolling of the vessel when
it is not on the pitch or roll center of the vessel.
NOTE:
These offsets assume hydrophone is rigidly mounted to vessel.
When mounted offset from the vessel’s pitch / roll center, the hydrophone swings in an arc about the
pitch / roll center causing variations in hydrophone depth, X and Y offsets as the vessel experiences
dynamic motion. These variations cause the target to appear at a different depth, Depression Angle and
Bearing than it actually is. By entering in X, Y, and Z offsets the system can correct for this dynamic motion
if a survey grade MRU is interfaced to the BATS.
It is assumed that the vertical reference for the pitch/roll center is the waterline of vessel or the entered
‘DEPTH OFF-SET.’
NOTE:
The TrackMan Software outputs the target position (X & Y) with
respect to the pitch / roll center of the vessel graphically in Display,
numerically in Status Block and on the RS-232 serial communications
port.
shows the horizontal distance and bearing (X & Y) for the beacon are determined relative to
the pitch / roll center of the vessel (C).
NOTE:
The slant range remains relative to the Hydrophone.
Determine the Hydrophone X and Y offsets as follows:
1.
Measure the distance between the hydrophone (H) and the pitch / roll center of the vessel (C) in
terms of X and Y coordinates on a horizontal plane at water level.
a.
The X coordinate is the distance perpendicular to the centerline – dxH in
. The Y
coordinate is the distance parallel to or along the centerline – dyH in
b.
Distance along the X-axis from the centerline towards a starboard direction has a positive
value. In this example, the X offset is 7 meters. Distance towards the port side of the vessel
has a negative value.
Содержание USBL BROADBAND ACOUSTIC TRACKING SYSTEM
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Страница 28: ...SECTION 2 SPECIFICATIONS 2 2 BATS 0018257_REV_A Figure 2 1 BATS USBL Portable System ...
Страница 29: ...2 3 Figure 2 2 Portable BATS Transceiver Figure 2 3 Portable BATS Transceiver Side Panel ...
Страница 33: ...2 7 Figure 2 9 BATS Rack Enclosure Front View CPU Figure 2 10 BATS Rack Enclosure Front View Laptop ...
Страница 44: ...SECTION 2 SPECIFICATIONS 2 18 Figure 2 11 BATS Portable System Mechanical Outline 0020020 ...
Страница 45: ...2 19 Figure 2 12 BATS Desktop System Mechanical Outline 0020022 ...
Страница 46: ...SECTION 2 SPECIFICATIONS 2 20 Figure 2 13 BATS Rackmount System Mechanical Outline 0020017 ...
Страница 52: ...3 6 Figure 3 3 Hydrophone Outline Drawing 0019592 ...
Страница 53: ...3 7 Figure 3 4 Hydrophone MTG Arrangement Page 1 of 2 0020018 ...
Страница 54: ...3 8 Figure 3 5 Pipe Angle Bracket Arrangement Page 2 of 2 0020018 ...
Страница 55: ...3 9 Figure 3 6 Angle Bracket Drawing 007327 ...
Страница 56: ...3 10 Figure 3 7 15m 50ft Deck Cable for Desktop 002936 ...
Страница 57: ...3 11 Figure 3 8 30m 100ft Deck Cable for Desktop 0002935 ...
Страница 58: ...3 12 Figure 3 9 Deck Cable for Portable 0003458 ...
Страница 60: ...3 14 Figure 3 10 Suggested Mounting Arrangement in Machined Shaft Flange OTS 0010007 ...
Страница 61: ...3 15 Figure 3 11 Suggested Hydrophone Shaft Machining Through Hull 0020019 ...
Страница 62: ...3 16 BATS 0018257_REV_A Figure 3 12 Gate Valve Type Installation ...
Страница 65: ...3 19 Figure 3 14 Hydrophone Mounting Diagram ...
Страница 78: ...3 32 BATS 0018257_REV_A Figure 3 23 Sync Interface Connector Data Diagram on Desktop Unit ...
Страница 79: ...3 33 Figure 3 24 Sync Interface Connector Desktop Console 0002566 ...
Страница 80: ...3 34 Figure 3 25 Analog Interface Connector Data Diagram Desktop Console ...
Страница 81: ...3 35 Figure 3 26 Analog Interface Connector Desktop Console 0002984 ...
Страница 82: ...3 36 Figure 3 27 Ethernet Cable 1PPS 0002474 ...
Страница 83: ...3 37 Figure 3 28 BATS Portable AC Cord 0002868 ...
Страница 84: ...3 38 Figure 3 29 BATS Portable COMMS Cable 0014672 ...
Страница 85: ...3 39 Figure 3 30 Portable BATS Synchronization Connector ...
Страница 86: ...3 40 Figure 3 31 BATS Portable Sync Cable 0002567 ...
Страница 87: ...3 41 Figure 3 32 Portable BATS Analog Input Connector Data Diagram ...
Страница 88: ...3 42 Figure 3 33 BATS Portable Analog Connector Assembly Drawing 0002441 ...
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Страница 95: ...5 5 Figure 5 3 BATS Block Diagram 1 ...
Страница 96: ...5 6 Figure 5 4 BATS Block Diagram 2 ...
Страница 97: ...5 7 Figure 5 5 Portable BATS Block Diagram 1 ...
Страница 98: ...5 8 Figure 5 6 Portable BATS Block Diagram 2 ...