Invention Grant
- Patent Title: Rotatable orientation independent gravity sensor and methods for correcting systematic errors
- Patent Title (中): 可旋转取向独立重力传感器和校正系统误差的方法
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Application No.: US12328181Application Date: 2008-12-04
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Publication No.: US08131494B2Publication Date: 2012-03-06
- Inventor: Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert A. Estes
- Applicant: Daniel T. Georgi , Carl M. Edwards , Sheng Fang , Rocco DiFoggio , Robert A. Estes
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: G01R35/00
- IPC: G01R35/00
Abstract:
A method to correct for a systematic error of a sensor having a plurality of accelerometers configured to measure gravitational acceleration, the method including: rotating the plurality of accelerometers about a first axis; obtaining a first set of calibration measurements from the plurality of accelerometers from the rotation about the first axis; determining a first systematic error for each accelerometer in the plurality using the first set of calibration measurements; and removing the first systematic error from sensor measurements to correct for the systematic error.
Public/Granted literature
- US20100145620A1 ROTATABLE ORIENTATION INDEPENDENT GRAVITY SENSOR AND METHODS FOR CORRECTING SYSTEMATIC ERRORS Public/Granted day:2010-06-10
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