MRU H
Motion Reference Unit
MRU H, the versatile heave compensator, represents the fifth generation MRU specially designed for heave compensation applications. As an ideal sensor for a range of marine applications requiring highly accurate heave measurements, this unit enhances the precision in environments with extreme horizontal accelerations.
Enhanced Applications and Output Variables
The MRU H is an essential instrument constructed for precise motion measurements in marine environments. With applications that stretch from offshore cranes to echo sounders, it is also valuable for ship motion monitoring, helideck motion monitoring, hydroacoustic positioning systems, and hull stress monitoring. Its output encompasses significant data such as roll, pitch, and heave alongside linear acceleration in 3-axes, enabling accurate heave position, velocity, and acceleration in adjustable frames with additional outputs like angular rate vectors.
Advanced Functionality and Algorithm Utilization
Embodying three accurate accelerometers and MEMS angular rate gyros, the MRU H achieves remarkable reliability with no rotational or mechanical wear-out components. A distinctive feature of its function is the PFreeHeave algorithm, which uses historical measurements to deliver a precise, phase-free heave signal. This is especially beneficial in conditions of long swell or for seabed mapping applications that can utilize slightly time-lagged heave signals.
Seamless Configuration and Data Integration
Accompanied by user-friendly Windows-based configuration software, the MRU H allows for meticulous calibration of monitoring points and alignment with the vessel's center of gravity. It offers multi-point heave measurement outputs and compatibility with various protocols for seamless data sharing across multiple users. This capability underscores its adaptability to diverse operational needs while ensuring widespread accessibility through established data communication standards.
Key features
- 0.05° roll and pitch accuracy
- High accuracy heave measurements even in dynamic environments
- Outputs on RS-232, RS-422, and Ethernet
- High output data rate (200 Hz)
- Precise heave at long wave periods by use of PFreeHeave® algorithms
- Lever arm compensation to two individually configurable monitoring points
- Meets IHO special order requirements
- Small size, light weight, and low power consumption
- No limitation to mounting orientation
- Each MRU delivered with Calibration Certificate
- Selectable communication protocols in the Windows-based MRU configuration software
- 2-year warranty
Product range
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24/7 Technical support
Our Technical Support team is readily available to provide global 24/7 support and can respond to resolve any issues at any time, wherever you are located in the world.
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Training
We can provide detailed training on the use of our products to ensure your crew is equipped with the necessary operational competence to minimise technical risk and maximise return on your asset investment.