Construction of a New-Type Tuning Fork Vibratory Gyroscope Using a Single Resonance Mode

概要

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The development of a flat-type vibratory gyroscope is expected in the near future. The new vibratory gyroscope using only a single resonance mode, which is entirely different from the conventional construction, is proposed here as such a structure. The characteristic of this type of vibratory gyroscope is that the mass is added asymmetrically to the top of the arm of a 2-arm-type tuning fork. The amplitude of the driving mode is increased or decreased by the Coriolis force that occurs in the mass part. This structure is used as an angular rate sensor by detecting the change of amplitude. The resonance frequency and displacement are analyzed by the finite-element method. Moreover, the influence on the resonance frequency by clamping the base end for support is also calculated, and the base form which is not affected by clamping, is clarified. Furthermore, it is investigated experimentally that this vibratory gyroscope acts as an angular rate sensor.
社団法人応用物理学会の論文
2000-07-15