Autocalibration of MEMS Accelerometer

Author

Frosio, I. ; Stuani, S. ; Borghese, N.A.

Author_Institution

Dept. of Comput. Sci., Milan Univ.

fYear

2006

fDate

24-27 April 2006

Firstpage

519

Lastpage

523

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

Keywords

accelerometers; calibration; least squares approximations; microsensors; motion estimation; MEMS accelerometer; accelerometer autocalibration; human movement analysis; microsensors; motion capture system; nonlinear least squares problem; Acceleration; Accelerometers; Calibration; Instrumentation and measurement; Micromechanical devices; Position measurement; Sensor systems; Surgery; Temperature sensors; Voltage; MEMS; accelerometer; autocalibration; motion capture;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE

Conference_Location

Sorrento

ISSN

1091-5281

Print_ISBN

0-7803-9359-7

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2006.328554

Filename

4124380