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The CG-5100 IMU from KVH Industries is a low drift, solid state, FOG-based commercial solution that offers versatility for critical sensing and GPS-integrated navigation applications. It combines KVH's highly precise fiber optic gyroscopes with MEMS accelerometers that have been proven in demanding industrial environments.



The versatile KVH CG-5100 Inertial Measurement Unit (IMU) combines proprietary technologies – highly accurate fiber optic gyro (FOG)-based sensors coupled with industry proven MEMS accelerometers – all within a compact single enclosure, providing reliability and long-term compliance to customer specifications. Through its seamless integration of these two highly reliable navigation components, the CG-5100 provides a ground-breaking low cost, small form factor solution for inertial measurement.

The KVH sensor engine of FOGs and accelerometers creates a flexible and efficient IMU, a high performance motion sensing package ideally suited for critical sensing applications and GPS integrated navigation systems. This strap-down inertial subsystem offers outstanding reliability and accurate 6-degrees-of-freedom measurement. The CG-5100 achieves its excellent performance by employing proprietary algorithms to a fully digital gyro sensor output, enabling the system to characterize and correct for the effects of temperature and misalignment. The CG-5100 also affords the end user with a convenient and easy to adapt output in a fully digital RS-232/RS-422 format.


  • KVH’s patented Digital Signal Processing (DSP) FOGs for high reliability and stable performance
  • Highly accurate rate and acceleration data
  • Designed to meet COTS requirements
  • Measures roll, pitch, and yaw angular rates and accelerations
  • Fiber optic gyro stability
  • Affordable, compact design
  • Excellent shock and vibration performance


  • Antenna, optical, and camera stabilization
  • GPS augmentation
  • Autonomous vehicles
  • Drilling
  • Navigation
  • Motion sensing

Technical Specifications

Input Rate (max):±375°/sec
Bias Instability (25°C):≤1°/hr, 1σ
Bias vs. Temp. (≤1°C/min):≤6°/hr, 1σ
Bias Offset (25°C):±20°/hr
Scale Factor Non-linearity (max rate, 25°C):≤1000 ppm, 1σ
Scale Factor vs. Temperature (≤1°C/min):≤500 ppm, 1σ
Angle Random Walk (25°C):≤0.067°/√hr (≤4°/hr/√Hz)
Bandwidth (-3 dB):≥100 Hz
Initialization Time (valid data):≤5 secs
Data Interface:Asynchronous RS-422 or RS-232
Baud Rate:115.2 Kbps
Data Rate:100 Hz
Dimensions (max):169.4 mm L x 152.4 mm W x 88.9 mm H (6.67 in x 6 in x 3.5 in)
Weight (max):2.27 kg (5 lbs)
Power Consumption:15 W
Input Voltage:+9 to +18 VDC
Operating Temperature:-40°C to +65°C (-40°F to +149°F)
Operating Shock Limit:7 g, 11 msec, half-sine
Operating Vibration Limit:8 g rms, 20-2000 Hz, random
Input Limit (max):±10 g
Bias Instability (constant temp):<0.25 mg, 1σ
Scale Factor Temperature Sensitivity:1000 ppm/°C, 1σ
Velocity Random Walk (25°C):≤0.12 mg/√Hz (0.23 ft/sec/√hr)
Bandwidth (-3 dB):50 Hz ±5%


The CG-5100 IMU from KVH Industries is available through Canal Geomatics. If you would like more information about this unit, please fill in the Request Pricing form to send us your inquiry.