Cancellation of Unknown Angular Rate Effects in Linear G Sensitivity Testing for Angular Rate Sensors

Paper #:
  • 2000-01-0056

Published:
  • 2000-03-06
Citation:
Kong, H. and Betts, A., "Cancellation of Unknown Angular Rate Effects in Linear G Sensitivity Testing for Angular Rate Sensors," SAE Technical Paper 2000-01-0056, 2000, https://doi.org/10.4271/2000-01-0056.
Pages:
7
Abstract:
A method of canceling unknown angular rate effects in impact immunity measurement for angular rate sensors is presented. A pair of the same type of testing sensors is arranged such that the sensing axes of the sensor pair are 180° out of phase. While an angular rate produces anti-phase component in the sensor outputs, a linear acceleration produces in-phase response from the sensors due to similar mechanical symmetry. This phase difference is used to cancel the angular rate component even though the actual angular rate may still be unknown. This cancellation can be derived from the sensor output transfer function and is supported with our experimental data.
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