MRU 2 THE ROLL AND PITCH MOTION SENSOR Kongsberg

Description

Overview

Essential details：MRU 2 THE ROLL AND PITCH MOTION SENSOR Kongsberg

Typical applications
The MRU 2 is typically used for roll and pitch measurements in offshore riser monitoring systems, dynamic positioning systems, telecommunication antenna systems and motion damping systems on high speed crafts.
This unit has to be mounted in a fixed direction relative to the ship and is best suited for applications with limited range in roll and pitch. If unlimited mounting orientation and/or unlimited mounting range is required, one of the MRU models with sensors in all three axis is recommended.
Function
The MRU 2 incorporates two highly accurate accelerometers and two Micro-Electro-MechanicalStructures (MEMS) angular rate gyros. This unit achieves high reliability by using solid state sensors with no rotational or mechanical wear-out parts.
The unit is delivered with Windows based configuration and data presentation software. By configuring the unit with the vector between the MRU and the vessel Center of Gravity (CG), the MRU 2 will output accurate roll and pitch measurements even when it is mounted high up in the ship, like on the bridge. This is due to the capability to suppress the effect of horizontal acceleration on the roll and pitch performance. This makes the MRU 2 superior to inclinometers, pendulous devices and standard Vertical Reference Units.

MRU 2

Output variables
The MRU 2 outputs static and dynamic roll and pitch angles and corresponding angular rate vectors. The unit outputs surge and sway accelerations.

Digital I/O protocols
MRU data is available through both Ethernet interface and serial lines enabling easy distribution of MRU data to multiple users on board the vessel. Output data are available on two individually configurable serial lines and Ethernet/UDP. Output variables are transmitted as IEEE 32-bit floats (recommended) or as scaled integers. In addition, ASCII-based NMEA 0183 proprietary sentences can be selected as data output protocols.

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