Patent ID: 9207080
Filing Date: 2015-12-08
Classification: G01C,H03M

Abstract:
1. A method of angular measurement by means of a resonator associated with means for setting the resonator into vibration and with means for detecting the vibration, wherein said means are linked to a processing circuit through which there travel control signals and measurement signals, the method comprising the steps of digitizing the measurement signals and of deducing an angular measurement from the measurement signals, characterized in that the method comprises the steps of: performing a spectral analysis of the digitized measurement signals so as to detect harmonic distortions therein arising from non-linearities; and correcting at least some of the signals travelling through the processing circuit so as to attenuate the non-linearities; in which, during the digitization, the measurement signals are sampled at a high frequency with respect to a resonant frequency of the resonator over a duration close to an inverse of the resonant frequency.