Hill, Van Santen, Steadman & Simpson
Vibration-type gyro apparatus
 A vibration-type gyro apparatus is disclosed, which includes a vibration mass portion, a piezo-electric element for detecting the displacement of the apparatus and a preamplifier having an input resistance R and supplied with the output from the piezo-electric element, wherein the input resistance R is selected to have a value substantially expressed as R.apprxeq.1/C.omega. (where C is an electrostatic capacity of the piezo-electric element and .omega. is a vibration angular velocity of the mass portion) so that the gyro apparatus will be substantially free of variations due to temperature changes. 
Kabushikikaisha Tokyo Keiki
G G
G01C G01P
inventional inventional
Youji Takeshi Masahiko Fuyuki Shin-Ichi Kanshi Michio Kazuteru
Okamura Hojo Saito Hane Kawada Yamamoto Fukano Sato