Patent ID: 7707885
Filing Date: 2010-05-04
Classification: G01C

Abstract:
1. A rate gyro measurement method that is compensated as a function of an instantaneous internal temperature of a resonator in a gyro measurement device comprising: at least one mechanical resonator; a loop for controlling an amplitude of vibration of the mechanical resonator; and a gyro loop suitable for delivering an output gyro signal (S); wherein a control of gain (P) of the loop for controlling the amplitude of vibration is established so as to vary as a monotonic function of the internal temperature of said mechanical resonator over a given temperature range; wherein, during an initial calibration stage, correspondences are established and memorized between firstly values of a gyro scale factor (Fe) and a gyro bias (S wherein, in operation, the following operations are performed: whereby a more accurate estimate, compensated as a function of the internal temperature of the resonator, of the mechanical rotation applied about a sensing axis of the mechanical resonator is obtained in analog form.