What makes our Motion Reference Units so special

What makes our Motion Reference Unit so special

Discover the unique advantages that set our MRUs apart from others in the Industry.

How it works

An Motion Reference Unit (MRU) is a device used to measure and record the movements of a vessel or object in all six degrees of freedom: roll, pitch, yaw, surge, sway, and heave.

MRUs are key components in control and monitoring of helidecks, offshore gangways, cranes, winches, sonars, ships, buoys, and many other applications.

Icons of ships with illustrations of Roll, Pitch, Yaw and Heave, Surge and Sway

How do we achieve this?

MEMS sensors + Sensor Fusion Algorithms = High Accuracy at low cost

MEMS sensors

Advances in MEMS technology
gyroscopes and accelerometers
enable new high accuracy sensors
at low cost

+ Sensor Fusion Algorithms

Our unique advanced sensor fusion algorithms get the most out of the best
available sensors to provide great results under realistic circumstances

= High Accuracy at low cost

High Accuracy in Real
Sea Conditions

Tested in real sea conditions

Many suppliers tend to present test data solely for simple regular motions observed in laboratory conditions. Unfortunately, vessels experience irregular and coupled motions at sea. While most sensors perform well in sine wave motion, only a select few excel in irregular sea conditions. Our MRUs stand out as they consistently deliver exceptional performance across all conditions.

Read more about how we validate our MRU

Easy to use

All Norwegian Subsea Motion Reference Units (MRUs) can be easily configured using the MRU Configurator (free of charge).

Simply define the communication ports and protocols as well as the MRU mounting orientation and location, and you are ready to go.

The MRU Configurator is also a great tool to monitor the outputs in real-time, plot the variables, check the on-board diagnostics and update the MRU firmware.