Title
On-the-field calibration of an array of sensors
Abstract
We address the problem of the calibration of an array of sensors by investigating theoretically and experimentally the case of 2 three-axis sensors. Our focus is on magnetometers that can be used in a low-cost inertial navigation system. Usual errors (misalignments, non-orthogonality, scale factors, biases) are accounted for. The proposed calibration method requires no specific calibration hardware. Instead, we solely use the fact that, if the sensor is properly calibrated, the norm of the sensed field must remain constant irrespective of the sensors orientation. Several strategies of calibration for an array of sensors are described along with the impact of (unavoidable) field disturbances. Experiments conducted with a couple of magneto-resistive magnetometers and data fusion results illustrate the relevance of the approach.
Year
DOI
Venue
2010
10.1109/ACC.2010.5531632
American Control Conference
Keywords
DocType
ISSN
calibration,inertial navigation,magnetometers,sensor arrays,field calibration,low cost inertial navigation system,magneto resistive magnetometers,misalignments,non-orthogonality,scale factor,sensor array,three axis sensor,magnetic hysteresis,data fusion,inertial navigation system
Conference
0743-1619
ISBN
Citations 
PageRank 
978-1-4244-7426-4
1
0.39
References 
Authors
0
3
Name
Order
Citations
PageRank
Eric Dorveaux130.87
Vissiere, D.210.39
Petit, N.3143.56