the MRU-B is an advanced motion reference unit designed to deliver precise data on heave, surge, sway, pitch, and roll, making it ideal for naval and marine applications, including survey platforms and autonomous vessels. equipped with state-of-the-art MEMS accelerometers and gyroscopes, this sensor ensures accurate real-time measurements, even in challenging environments.
This unit can be customized to output proprietary message formats or widely-used industry standards such as Kongsberg, Seatex, and Teledyne TSS, facilitating seamless integration and modernization of older systems. It comes in an IP67-rated housing or a specialized subsea version, capable of functioning at depths of up to 200 meters.
Technical Specifications:
| MRU-B1 | MRU-B1.1 | MRU-B2 | |
| Output Signals | Heave, surge, and Sway | Pitch and Roll | Heave, Surge, Sway, Pitch, and Roll |
| Heave Accuracy | 5% or 5 cm (RMS) | – | 5% or 5 cm (RMS) |
| heading Type | External Magnetic Compass (optional) | External Magnetic Compass (optional) | External Magnetic compass (optional) |
| Pitch & Roll Accuracy | – | 0.02 degrees (RMS) | 0.02 degrees (RMS) |
| Dimensions (mm) | 120 x 50 x 53 (IP67) 245 x 140 x 115 (subsea) |
120 x 50 x 53 (IP67) 245 x 140 x 115 (subsea) |
120 x 50 x 53 (IP67) 245 x 140 x 115 (subsea) |
| Weight (grams) | 220 (IP67) 6570 (subsea) |
220 (IP67) 6570 (subsea) |
220 (IP67) 6570 (subsea) |
| Applications | Marine Loading Dock; Platform Heave Compensation | Crane Rotation Compensation; Nearshore Drilling Platform | Survey Vessel Motion Analysis; Offshore Refinery Motion Control |
