KONGSBERG MRU 5 The ideal marine motion sensor
This 5th generation MRU 5 is specially designed for high precision motion measurements in marine application and for users requiring high accuracy roll, pitch and heave measurements.
MRU 5 The ideal marine motion sensor
MRU 5 Typical applications
The MRU 5 is the ideal sensor for motion compensation of multibeam echo sounders, offshore cranes, hydroacoustic positioning systems and dynamic motion monitoring of roll, pitch and linear accelerations on offshore structures. The MRU 5 provides documented roll and pitch dynamic accuracy of 0.005° 1-sigma at a ±5° amplitude. The unit maintains its specified accuracy aboard any surface vessel or subsea vehicle.
MRU 5 Technical specifications
Orientation output
Angular orientation range: ±45°
Resolution in all axes: 0.0001°
Static accuracy roll & pitch1): 0.02° RMS
Dynamic accuracy roll & pitch2),(for a ±5° amplitude): 0.005 1-sigma
Bandwidth: 0 – 10 Hz
Gyro output
Angular rate range: ±75°/s
Angular rate noise: 0.010°/s RMS
Scale factor error: 0.02 % RMS
Heave output
Output range: ±50 m, adjustable
Heave accuracy for 0 to 25 s motion periods (real-time)：5 cm or 5% whichever is highest (RMS)
Heave accuracy for 10 s motion period (real-time)：1 cm or 1% whichever is highest (RMS)
Heave accuracy for 0 to 50 s motion periods (delayed)：1 cm or 1% whichever is highest (RMS)
Heave velocity accuracy： 0.01 m/s RMS
Bandwidth： 0.04 – 10 Hz
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