In this paper, we present an autocalibration procedure for tri-axial MEMS accelerometers, which allows increasing the accuracy of this kind of micro-sensors. This makes them usable for the analysis of the human movement. The procedure is based on the constancy of the module of the accelerometer output in static condition, and it is formulated and resolved as a non linear least squares problem. The calibrated output of the MEMS compares favorably with that obtained from a traditional motion capture system. Quantitative results are reported and discussed.
Autocalibration of MEMS accelerometer / I. Frosio, S. Stuani, N.A. Borghese - In: IMTC/06® : proceedings of the IEEE Instrumentation and Measurement Technology Conference : Hilton Sorrento Palace, Sorrento, Italy, 24-27 April 2006 / [a cura di] IEEE Instrumentation and Measurement Society. - Piscataway : IEEE Computer Society, 2006 Apr. - ISBN 0780393600. - pp. 519-523 (( convegno IEEE Instrumentation and Measurement Technology Conference, IMTC 2006 tenutosi a Sorrento nel 2006 [10.1109/IMTC.2006.328554].
Autocalibration of MEMS accelerometer
I. FrosioPrimo
;N.A. BorgheseUltimo
2006
Abstract
In this paper, we present an autocalibration procedure for tri-axial MEMS accelerometers, which allows increasing the accuracy of this kind of micro-sensors. This makes them usable for the analysis of the human movement. The procedure is based on the constancy of the module of the accelerometer output in static condition, and it is formulated and resolved as a non linear least squares problem. The calibrated output of the MEMS compares favorably with that obtained from a traditional motion capture system. Quantitative results are reported and discussed.
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