How does Norwegian Subsea's inertial measurement unit compare?
Norwegian Subsea provides a comprehensive range of high-performance Motion Reference Units (MRUs), often referred to as inertial measurement units (IMUs), designed for demanding marine, subsea, and offshore applications. Our MRUs leverage advanced sensor fusion algorithms and state-of-the-art MEMS sensor technology, rigorously tested and validated in real sea conditions to ensure exceptional accuracy and reliability.
Our MRUs deliver high accuracy across Roll, Pitch, Heave, Surge, Sway, and Yaw (6DoF). We offer different accuracy tiers (±0.05°, ±0.02°, ±0.01° for Roll & Pitch) across our product lines to meet diverse operational requirements and budgets. A key advantage is their long-term stability; our MRUs typically do not require recalibration during their operational lifetime for most applications, reducing maintenance overhead and ensuring consistent performance.
Designed for practicality, Norwegian Subsea MRUs are compact, lightweight, and can be mounted in any orientation, simplifying installation. Integration is straightforward thanks to broad support for standard communication protocols (Ethernet UDP, Modbus TCP, Ethernet/IP, RS-232/485, NMEA) and various connector options. Configuration is managed via a user-friendly web browser interface, requiring no software installation. This ease of integration makes them ideal for cost-effective retrofitting of older systems.
Our product portfolio includes the MRU Compact (IP65, passive PoE), MRU Marine (IP68, versatile connectivity), MRU Subsea (6000m depth-rated titanium housing), and MRU Ex (stainless steel, certified for hazardous areas). Each model is available in different accuracy versions and can be supplied as an Inclinometer/VRU (providing Roll/Pitch only) for applications not requiring heave data. This range ensures a suitable, high-performance solution for virtually any marine or subsea motion sensing need.
