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Autocalibration of MEMS Accelerometer

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3 Author(s)
I. Frosio ; Applied Intelligent System (AIS) Laboratory, Computer Science Department, University of Milan, Via Comelico 39/41, 20135 Milan, Italy. Email: frosio@dsi.unimi.it ; S. Stuani ; N. A. Borghese

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

Published in:

2006 IEEE Instrumentation and Measurement Technology Conference Proceedings

Date of Conference:

24-27 April 2006