Vibration-type gyro apparatus
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United States of America Patent
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-
Sep 22, 1987
Grant Date -
N/A
app pub date -
Oct 23, 1985
filing date -
Oct 25, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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