Context
The motion reference unit (MRU) measures the roll and pitch movements of the vessel. The information provided by the motion sensor is used by the ME70 system to stabilize the beams.
NoteThe input from the motion reference unit (MRU) is of vital importance to the ME70. An unserviceable - or inaccurate - sensor will render the scientific data useless. Due to the importance of the motion sensor data, the ME70 will stop "pinging"’ if the information from the sensor is lost.
The ME70 system supports the following datagram format from a motion sensor:
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Teledyne TSS1 Teledyne TSS1 is a proprietary datagram format created by Teledyne TSS Navigation Systems for heave, roll and pitch compensation. When you select this protocol, the number of sensor variables is fixed, and there is no token associated with it.
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Kongsberg EM Attitude 1000 The EM Attitude 1000 is a proprietary datagram format created by Kongsberg Maritime for use with digital motion sensors. It holds roll, pitch, heave and heading information. The datagram contains a 10-byte message. In many new designs, this datagram format has been replaced with EM Attitude 3000 format.
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EM Attitude 3000 The Kongsberg EM Attitude 3000 is a proprietary datagram format created by Kongsberg Maritime for use with digital motion sensors. It holds roll, pitch, heave and heading information. The datagram contains a 10-byte message.
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Further requirements
You must insert the physical location of the motion reference unit related to the reference point (origin) you created on
the Ship page. The values for rotation around the X, Y and Z axis are used to compensate for any misalignments made during the physical installation
of the motion reference unit.