Invention Grant
- Patent Title: Magnetic null accelerometer
- Patent Title (中): 磁零加速度计
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Application No.: US10905007Application Date: 2004-12-09
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Publication No.: US07331229B2Publication Date: 2008-02-19
- Inventor: Ray F. Campbell , Joan D. Wada , Michael J. Costello , Mohsen A. Khatiblou
- Applicant: Ray F. Campbell , Joan D. Wada , Michael J. Costello , Mohsen A. Khatiblou
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agency: Ostrager Chong Flaherty & Broitman P.C.
- Main IPC: G01P15/125
- IPC: G01P15/125

Abstract:
An accelerometer system includes a capacitor plate fixed within a housing and a flexure plate positioned substantially parallel to the capacitor plate a distance therefrom. The distance varies in response to acceleration forces acting upon the flexure plate such that the flexure plate and the capacitor plate generate a capacitance signal. A magnet is coupled to the flexure plate and generates a magnetic field, which moves as the flexure plate flexes. A coil winding around the flexure plate generates a second magnetic field as a function of capacitance signal, thus opposing the flexure plate magnetic field, and thereby returning the flexure plate to a null position.
Public/Granted literature
- US20080011081A1 MAGNETIC NULL ACCELEROMETER Public/Granted day:2008-01-17
Information query
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