Measuring and testing – Speed – velocity – or acceleration – Temperature compensator
Patent
1985-10-23
1987-09-22
Chapman, John
Measuring and testing
Speed, velocity, or acceleration
Temperature compensator
73505, G01P 904
Patent
active
046946969
ABSTRACT:
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.
REFERENCES:
patent: 4578650 (1986-03-01), Watson
Fukano Michio
Hane Fuyuki
Hojo Takeshi
Kawada Shin-ichi
Okamura Youji
Chapman John
Kabushikikaisha Tokyo Keiki
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