Operating method for a coriolis gyroscope and...

G - Physics – 01 – C

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G01C 19/56 (2006.01) H03K 5/01 (2006.01)

Patent

CA 2524046

In an operating method for a Coriolis gyro (1), digital read signals are produced, which represent a measure of the instantaneous amplitudes/frequencies of the stimulation oscillation/read oscillation of the resonator (2) of the Coriolis gyro (1). The resonator (2) has force signals applied to it, with the force signals being controlled as a function of the digital read signals such that the stimulation oscillation/read oscillation assume specific amplitudes/frequencies. The force signals (S3 to S6) are produced from quantized output signals (S1, S2) from a pulse modulator (37) which is fed with digital stimulation/compensation signals (S15 to S18) which are derived from the digital read signals (S9, S10).

L'invention concerne un procédé de fonctionnement d'un gyroscope vibrant (1), selon lequel des signaux numériques d'extraction sont produits, lesdits signaux représentant une grandeur pour les amplitudes/fréquences instantanées de l'oscillation d'excitation/oscillation d'extraction du résonateur (2) du gyroscope vibrant (1). Ce résonateur (2) est soumis à des signaux de force régulés en fonction des signaux numériques d'extraction, de sorte que l'oscillation d'excitation/l'oscillation d'extraction admettent des amplitudes/fréquences définies. Les signaux de force (S3 à S6) sont produits à partir de signaux de sortie quantifiés (S1, S2) d'un modulateur d'impulsions (37), qui est alimenté en signaux numériques d'excitation/de compensation (S15 à S18) dérivés des signaux numériques d'extraction (S9, S10).

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