横振動音片を用いた振動ジャイロスコープの等価回路

抄録

This paper deals with the equivalent circuit of vibratory gyroscopes using the flexurally-vibrating double-resonant vibrator which has a square cross section or a regular triangular cross section. In the former resonator of a square cross section, two pairs of vibrational modes perpendicularly intersecting each other degenerate, and also three pairs of orthogonal vibrating modes degenerate in the latter resonator of a regular triangular cross section. It is clarified that the relations of coordinate transformation between the pairs of orthogonal vibrating modes in the respective resonators can be shown and considered by the equivalent circuit. Moreover, the equivalent electromechanical circuits of flexurally-vibrating resonator gyroscopes which are piezoelectrically driven and detected are given. These circuits will be useful for the simulation of characteristics and the design of a vibratory gyroscope.