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Title:
静電容量検出型振動ジャイロ、および静電容量変化検出方法
Document Type and Number:
Japanese Patent JP4310571
Kind Code:
B2
Abstract:
A capacitance-sensing vibratory gyro includes a capacitance-sensing circuit that detects changes in capacitances of a sensing element. The capacitance-sensing circuit includes two operational amplifiers. The inverting input terminal of each operational amplifier is connected to the corresponding sensing electrode in the sensing element. A bias voltage generated by dividing a power supply voltage with resistors is applied to the non-inverting input terminals of the operational amplifiers. The bias voltage is applied to each sensing electrode by imaginary short-circuiting in the operational amplifiers so that the bias voltage directly depends on the power supply voltage.

Inventors:
Akira Mori
Application Number:
JP2003102476A
Publication Date:
August 12, 2009
Filing Date:
April 07, 2003
Export Citation:
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Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
G01C19/56; G01C19/5719; G01C19/5726; G01C19/5755; H01G7/00
Domestic Patent References:
JP11044540A
JP8178945A
JP2001153659A
JP11326409A
JP6288773A
JP7225162A
JP2000088578A
JP2001264072A
Attorney, Agent or Firm:
Machida Kasaya