What is the best MRU for dynamic positioning?

A Motion Reference Unit (MRU) or a Vertical Reference Unit (VRU) is an important component in Dynamic Positioning (DP) systems to providing reliable and precise roll and pitch measurements. Norwegian Subsea Motion Reference Units (MRUs) are engineered for high accuracy and reliability, making them excellent choices for Dynamic Positioning (DP) systems. Our MRUs utilize advanced sensor fusion algorithms and state-of-the-art MEMS technology to provide precise 6DoF motion data (Roll, Pitch, Heave, Yaw, Surge, Sway) crucial for motion compensation of GNSS antenna and other position reference systems.

The NORSUB MRU can be configured with industry-standard protocols, enabling easy interfacing with existing DP systems or serving as a replacement for other MRUs/VRUs. The MRU/VRU can be installed in any direction. The configuration software allows for convenient setup of the remote monitoring point, specifically the GNSS antenna location.

To accommodate various installation requirements, the NORSUB MRU can be supplied with either an industrial junction box or a pigtail cable for integration into existing systems. This ensures compatibility and ease of implementation in different vessel setups.

It is also frequently used as a cost-effective, high-performance drop-in replacement (retrofit) for older MRUs/VRUs on existing DP systems, often without the need for recalibration.