Page
126
of
254
Version
6.3
Rev
r012
Date
05-11-2022
Part No. 96000001
7.3
Installation
7.3.1
The IMU and GPS antennas
The IMU (Inertial Measurement Unit) housing should be secured by 4 M8 (5/16” in Imperial units)
screws. The IMU housing is depth rated to 15m. The IMU can be mounted close to or on the
Multibeam transducer itself. It is not necessary to mount the IMU at the vessel’s CoG (centre of
gravity),
but if it is not mounted on the CoG, it is vitally important that very accurate IMU to CoG
offsets are input into POSView.
The GNSS antennas should be mounted rigidly with respect to each other as well as the IMU, with a
separation of at least 1m between the GPS antennas. The antennas should be mounted so that they
have a clear view of the sky.
The standard cables provided with the INS option are:
1x15m IMU cable
1xBNC jumper cable
2x8m GPS antenna cables
7.3.2
INS BNC – TNC Connections
Figure 148: INS BNC & TNC Connections
Figure 149: PPS Out - PPS In
There is one BNC connection for the
PPS out. The TNC connection next to it
is for the Primary Antenna. The
Secondary antenna connects to the
TNC connection on the end.
The PPS Out is connected to the SIM PPS In, with a short
length of cable
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Страница 158: ...Figure 174 Smooth log information copied from a real time survey log...
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Страница 237: ...Page 237 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 215 Sonic 2026 Projector...
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Страница 246: ...Page 246 of 254 Version 6 3 Rev r012 Date 05 11 2022 Part No 96000001 Figure 224 SIM Box Drawing...
Страница 247: ...Page 247 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 225 SIM Stack Outline...
Страница 249: ...Page 249 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 227 Locking Ring type Deck Lead...
Страница 250: ...Page 250 of 254 Version 6 3 Rev r012 Date 05 11 2022 Part No 96000001 Figure 228 I2NS Type 42 IMU Dimensions...
Страница 251: ...Page 251 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 229 I2NS Type 82 IMU offsets...
Страница 252: ...Page 252 of 254 Version 6 3 Rev r012 Date 05 11 2022 Part No 96000001 Figure 230 I2NS IMU Cable...
Страница 253: ...Page 253 of 254 Version 6 3 Rev r012 Date 05 11 2022 Figure 231 I2NS SIM Dimensions...
Страница 254: ...Page 254 of 254 Version 6 3 Rev r012 Date 05 11 2022 Part No 96000001 Figure 232 Dual Head Mount Offsets...