Title :
A new approach to piezoelectric crystal gyroscopes for higher sensitivity
Author :
Wakatuki, Noboru ; Kudo, Subaru ; Satoh, Yutaka ; Tanaka, Hiroshi
Author_Institution :
Ishinomaki Senshu Univ., Japan
Abstract :
A new and more sensitive driving method for a crystal gyroscope is proposed and examined with a H-type LiTaO3 gyroscope. This method drives the gyroscope at the resonance frequency of the detecting mode. The experimental results for sensitivity and response characteristics of the gyroscope driven by the new method are shown. These are discussed in comparison with the results achieved by the conventional driving method
Keywords :
Coriolis force; Q-factor; angular velocity measurement; crystal resonators; equivalent circuits; frequency response; gyroscopes; lithium compounds; vibrations; H-type LiTaO3 gyroscope; LiTaO3; angular rate sensors; detecting mode resonance frequency; equivalent circuit model; frequency response; higher sensitivity; piezoelectric crystal gyroscopes; quality factor; response characteristics; sensitive driving method; time response; vibratory gyroscopes; Analytical models; Angular velocity; Arm; Electrodes; Gyroscopes; Resonance; Resonant frequency; Stress; Vibrations; Voltage;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762192
