The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2025
Filed:
Jun. 18, 2021
Thales, Courbevoie, FR;
THALES, Courbevoie, FR;
Abstract
A method for calibrating an inertial angular sensor includes: for at least two electrical angles of the vibration wave, applying, via each of the three trim controls, a sinusoidal stiffness disturbance having a disturbance frequency, and for each applied disturbance, determining and storing an estimated excitation force to be applied to the resonator in the presence of the stiffness disturbance, on the basis of excitation controls determined by the servo controls; determining, on the basis of the three estimated excitation forces, three 2×2 matrices, being representative of the response of the gyrometer to the stiffness disturbance; determining and storing an estimated inverse excitation matrix and an estimated inverse detection matrix on the basis of the three matrices, an excitation matrix and a detection matrix being respectively representative of effects of the excitation chain and of effect of the detection chain of the sensor.