Patent ID: 6650418
Filing Date: 2003-11-18
Classification: G01H,G01P,G01V

Abstract:
A fiber optic sensor that includes a flexural disk having a pair of fiber optic coils mounted on opposite sides thereof and optically coupled together to form an interferometer that produces an output signal in response to acceleration of the flexural disk, comprising:a housing having first and second end plates with a sidewall extending therebetween, the sidewall having an inwardly facing groove therein, the flexural disk having an outer edge portion mounted in the inwardly facing groove; a compressive damper mounted in the housing and arranged to exert a compressive force on the flexural disk to control movement thereof in response to acceleration of the flexural disk along a sensing axis and thereby control the output signal amplitude over a selected operational frequency range, wherein the compressive damper comprises: a first compressive damping member mounted between a first side of the flexural disk and the first end plate; and a second compressive damping member mounted between a second side of the flexural disk and the second end plate.