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New CRH01

17 October 2013


MEMS Gyroscope Challenges FOG Technology


Silicon Sensing Systems have released a single axis MEMS gyroscope that has a performance that can now challenge FOG gyroscopes for applications where low noise and high stability are critical, but at an affordable cost.

The CRH01 is a development utilising the highly successful VSG3 (inductive drive and pick-off on our unique vibrating ring) technology from Silicon Sensing.

  • Bias Instability < 0.2°/hr
  • Bias over Temp  ±0.2°/sec to ±0.5°/sec
  • ARW <0.04°/√hr
  • Quiescent Noise 0.02 °/sec
  • Rate Ranges 25°/sec to 400°/sec
  • Analogue Interface
  • 35mm x 35mm x 25mm (excluding flange)
  • Excellent Shock and Vibration resilience.

 
This performance has been achieved by using an optimised sensor head, which provides improved thermal stability and noise, and high grade discrete components operating in a closed loop system.

     This Allan Variance chart shows the characteristics for a CRS01-25 device, the 25˚/s rate range version. This clearly shows the bias instability is typically 0.1˚/hr and has an Angle Random Walk (ARW) better than 0.02°/√hr. This level of performance has, up to now, only been achievable with FOG and Ring Laser Gyro technology. The CRH01 clearly challenges these technologies.

 

For more information on pricing and availability please contact us.
Visit our Downloads Library to download datasheets for the CRH01 range.

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