iVRU-CB-M: Inertial Measurement System with integrated Strapdown Data Fusion with Odometer Interface and integrated L1 GPS

Vertical Reference Unit with MEMS Gyros, MEMS Accelerometers, Odometer I/F, integrated GPS and Strapdown Processor

With iVRU-CB-M a vertical reference and navigation unit / IMS with integrated L1 GPS engine and advanced 15+ state Kalman filter based data fusion is provided for applications which require medium accuracy and simple using.

The iVRU-CB-M is a triaxial system with three orthogonal mounted MEMS gyroscopes, three MEMS accelerometers, GPS engine and an integrated powerful micro-processor with high resolution sensor data digitization to provide digital data transmission (CAN, RS232, RS422) and extended internal error modelling. As a further Option an external GPS / magnetometer can be provided as well as an integrated speed sensor interface to achieve higher performance also in difficult environment.

Features of iVRU-CB-M

  •  Three MEMS based rate gyros and three accelerometers (+/- 300 deg/s, 4 g)
  • < 0.002 deg/s bias stability (short term, const. temp) and 0.2 deg/s over temperature range (OTR)
  • CAN / RS232 / RS422 interfaces (options)
  • Sync Input / Trigger Output available
  • Integrated L1 GPS receiver as option (or external GPS engine)
  • Odometer interface as option
  • Navigation, Guidance and Control, AHRS; 15+ state integrated Kalman filter based IMS/GNSS data fusion

Further information:

Datasheet iVRU-CB-M with higher rate range MEMS gyros

Test Report: Flight Test Data Analysis of iVRU-CB-M (MEMS)vs. SPAN-CPT (FOG) and SPAN-HG1700 (RLG)
Test Report: Field Test Data Analysis of iVRU-CB-M

Datasheet iVRU-FC with fiber optic gyros and MEMS accelerometers
Datasheet iVRU-FQ with fiber optic gyros and servo accelerometers

Hint: For new designs use our system iNAT-U200/RLD-CB-DA, which can be provided as a 100 % form-fit-function (FFF) replacement on request.

Further information

iNAT-U200/RLD-CB-DA: full FFF replacement for iVRU-CB-M, which is now in production for more than 20 years and installed on many thousands of vehicles and target drones.

More manuals, user reports and other information in our download area.

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