Gemini Profiling System
0695-SOM-00001, Issue: 03
20
© Tritech International Ltd.
5. Gemini Profiler Installation
5.1. Installing the Sonar Head
The sonar should be mounted with the transducers facing toward the scene to be
profiled (typically the seabed). The scanning sector is orientated with the arc of the
transmitter and the vertical beamwidth is at right angles to this arc, such that side and
end-on views of the sonar cone are as follows:
For Vessel Installations
The profiling heads can be installed over the side of the survey vessel or within a
moon pool if one is available. Installation within a moon pool will provide a more
stable operating environment but it must be ensured that the sonar path to the seabed
is clear and not obstructed by the vessel hull.
For over the side installation the profiling heads would normally be mounted such that
the connector end-cap is facing the stern and have to be mounted to a rigid mounting
on the side of the vessel.
