Vibrator for vibration gyroscope

Abstract

Abstract PURPOSE:To broaden and control the width of a frequency band, in a vibration gyroscope of a square-cylinder shaped vibrator, by setting the difference in sizes of the longitudinal side and the lateral side of the cross section of the vibrator, and controlling the width of the frequency band. CONSTITUTION:When a main body 11 of a square-cylinder shaped vibrator 1 is supported by two supporting needles 12 and has uniform isotropic quality, the resonance frequencies in the longitudinal direction and in the lateral direction are determined by the sizes (a) and (b) of the cross section of the vibrator. The frequency indicating the resonance frequency of the vibrating gyroscope is proportional to the difference in the resonance frequencies in the longitudinal direction and in the lateral direction of the vibrator 1. Therefore, the ratio between the longitudinal side and the lateral side (a):(b)=1:1 of the cross section of the vibrator is slightly shifted in order to broaden the frequency band of the vibration gyroscope and the frequency is made large. Thus the width of the frequency band can be broadened and controlled without later adjustment.

Inventors

• 👤 Hideo Funahashi
• 👤 舟橋　秀夫

Bibliographic Details