Specifications

Tritech International Ltd SeaKing System Options OM
Issue 3 TIL – Eng – Spec – 040 Page 31 of 44
Enable ('x') the 'Continuous Data Output' check-box for both Master and Slave to include these
head's scan data in the Mean Seabed Output. If both heads are disabled then this will effectively
disable the transmission of the Mean Seabed Output string.
Step 3:
Click on the 'Remote Comms Setup' button in the Setup page to assign a COM port for the Serial
Channel selected for 'Mean Seabed' output…
… In the above example, the default settings are shown. In this case Serial Channel 1 has been
selected and assigned COM 1 Port. The Port must now be Enabled (=True) as indicated for data
transmissions to occur.
It is also in this area that the Port transmission settings (Baud, Bits, etc) should be configured to
match the receiving Terminal.
The Scan Packet size and position can be adjusted using the Direction ("Dirn") and Width controls
on the RAT controller, i.e.
N.B. The 'Mirror Slave' Profiler control is enabled in order to achieve the above direction and scan packet
orientation. This control will counter the scan direction of the Slave w.r.t. Master Profiler.
In the derivation of the 'Mean Seabed' figure, each data point is first measured by the profiler and
returned as a return path Time. The system Velocity Of Sound (Menu -> VOS) is then applied to
this to convert this time into a Slant Range, this being the distance to the seabed at the current
angle of incidence. With this polar data a 'height off seabed' range is then calculated and if valid is
applied in the final Mean Seabed calculation. To be valid, the range must be non-zero and within
the Gating restrictions.
oil fill
screw
transducer
(mounted at centre)
45
o
30
o
Direction = 330
Width = 45
o
o