Invention Grant
US09534896B2 Oscillating voltage of sense electrodes in a MEMS tuning fork gyroscope
有权
MEMS音叉陀螺仪中感应电极的振荡电压
- Patent Title: Oscillating voltage of sense electrodes in a MEMS tuning fork gyroscope
- Patent Title (中): MEMS音叉陀螺仪中感应电极的振荡电压
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Application No.: US13851448Application Date: 2013-03-27
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Publication No.: US09534896B2Publication Date: 2017-01-03
- Inventor: Michael S. Sutton , Mark W. Weber
- Applicant: Honeywell International Inc.
- Applicant Address: US NJ Morris Plains
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morris Plains
- Agency: Fogg & Powers LLC
- Main IPC: G01C19/5621
- IPC: G01C19/5621 ; G01C19/5726 ; G01C19/5614

Abstract:
Embodiments of the subject application provide a method for operating a micro-electro-mechanical system (MEMS) tuning fork gyroscope. The method includes oscillating a voltage on a first sense electrode out-of-plane from and proximate a first side of a first proof mass between a first voltage and a second voltage at a first frequency. The method also includes oscillating a voltage on a second sense electrode out-of-plane from and proximate a second side of the first proof mass between the first voltage and the second voltage at the first frequency and 180 degrees out-of-phase with the voltage on the first sense electrode. The method also includes generating a rate signal corresponding to a rotation rate of the first proof mass by first demodulating an out-of-plane signal from the first proof mass at the first frequency and second demodulating the out-of-plane signal in phase with in-plane motion of the first proof mass.
Public/Granted literature
- US20150253138A1 OSCILLATING VOLTAGE OF SENSE ELECTRODES IN A MEMS TUNING FORK GYROSCOPE Public/Granted day:2015-09-10
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