|MRU-B (Basic)||MRU-E (Enhanced)||MRU-P (Professional)||MRU-PD (Survey set)|
|Download datasheet||Download datasheet||Download datasheet||Download datasheet|
|Download Test Report||Download Test Report||Download Test Report||Download Test Report|
|Heave accuracy||5% / 5cm||5% / 5cm||5% / 5cm||5% / 5cm|
|Pitch & Roll dynamic accuracy||0.05 deg||0.05 deg||0.05 deg||0.03 deg|
|Pitch & Roll post processing accuracy||0.03 deg||0.03 deg||0.03 deg||0.02 deg|
|Linear acceleration accuracy||0.005 m/sec2||0.005 m/sec2||0.005 m/sec2||0.005 m/sec2|
|Heading dynamic accuracy||-||0.6 deg||0.4 deg||0.05 deg (4 meters base line)|
|Heading post processing accuracy||-||0.1 deg||0.1 deg||0.03 deg|
|Velocity accuracy||-||-||0.03 m/sec||0.03 m/sec|
|Position accuracy||-||-||1.5 m (GPS L1)|
1.2 m (GPS L1&L2)
0.6 m (SBAS)
0.4 m (DGPS)
0.05 m (PP)
0.01 m + 1 ppm (RTK)
|0.4 m (DGPS)|
0.01 m + 1 ppm (RTK)
|Gyroscopes Bias in-run stability||1 deg/hr||1 deg/hr||1 deg/hr||1 deg/hr|
|Accelerometers Bias in-run stability||0.005 mg||0.005 mg||0.005 mg||0.005 mg|
|Interface||RS-232, RS-422, RS-485, Ethernet|
|Output data format||Binary, TSS-1, NMEA 0183 ASCII characters|
Motion Reference Units key performance
Heave accuracy @ 10 seconds wave
Heave accuracy @ 20 seconds wave
Pitch dynamic accuracy @ 20 sec wave
Roll dynamic accuracy @ 20 sec wave
MRU Heave, Pitch & Roll dynamic testing
Gyroscopes & Accelerometers Bias in-run stability
The Inertial Labs has developed Motion Reference Units (MRU) to meet requirements from marine and hydrographic applications. MRU is enhanced, high-performance strapdown Motion Sensor, that determines Pitch & Roll, Heave, Sway, Surge, Ac celerations, Angular rates, Heading, Velocity and Positions for any device on which it is mounted. The Inertial Labs Motion Reference Units utilizes solid state 3-axes each of precision accelerometers, magnetometers, gyroscopes and barometric sensors to provide accurate Heave, Sway, Surge, Pitch and Roll of the device under measure.
Integration of very low noise gyroscopes output provides high frequency, real-time measurement of the Vessel, Ships, Helidecs, ROV, Marine antennas, Cranes rotation about all three rotational axes.
Through a combination of proven sector expertise and a continued investment in technological innovation, Inertial Labs delivers the optimum balance of price and performance ratio solutions for its customers.
Our MRUs featuring developed few micro g Bias in-run stability Micro Electro Mechanical System (MEMS)-based accelerometers. New generation of Inertial Labs 1 deg/hr Bias in-run stability MEMS-based gyroscopes are an ideal solution for demanding marine applications, with their electronic nature negating the problems associated with expensive mechanical gyro solutions, as well as those based on fiber optic (FOG) technology.
Inertial Labs MEMS gyroscopes set the standard for the industry, with our high-end MRUs featuring gyros that enable sector-leading accuracy and reliability standards.
Applications and customer cases: