Title:
ROTATABLE ORIENTATION INDEPENDENT GRAVITY SENSOR AND METHODS FOR CORRECTING SYSTEMATIC ERRORS
Document Type and Number:
WIPO Patent Application WO/2010/065272
Kind Code:
A3
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.
Inventors:
GEORGI DANIEL T (US)
EDWARDS CARL M (US)
FANG SHENG (US)
DIFOGGIO ROCCO (US)
ESTES ROBERT A (US)
EDWARDS CARL M (US)
FANG SHENG (US)
DIFOGGIO ROCCO (US)
ESTES ROBERT A (US)
Application Number:
PCT/US2009/064526
Publication Date:
August 05, 2010
Filing Date:
November 16, 2009
Export Citation:
Assignee:
BAKER HUGHES INC (US)
GEORGI DANIEL T (US)
EDWARDS CARL M (US)
FANG SHENG (US)
DIFOGGIO ROCCO (US)
ESTES ROBERT A (US)
GEORGI DANIEL T (US)
EDWARDS CARL M (US)
FANG SHENG (US)
DIFOGGIO ROCCO (US)
ESTES ROBERT A (US)
International Classes:
G01P21/00; E21B47/04; G01P15/02
Foreign References:
| US7093370B2 | 2006-08-22 | |||
| US7065449B2 | 2006-06-20 | |||
| US20040111212A1 | 2004-06-10 |
Other References:
See also references of EP 2356472A4
Attorney, Agent or Firm:
BYNUM, Todd, A. et al. (P.O. Box 4740Houston, TX, US)
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