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Modeling and Comparing the Linear Performance of non Uniform Geometry Bend Sensors

Authors:
Giancarlo Orengo
Antonino Lagati
Giovanni Saggio

Keywords: bend sensor; gesture recognition

Abstract:
Resistive bend sensors have been increasingly used in different areas for their interesting property to change their resistance when bent. They can be employed in those systems where a joint rotation has to be measured, such as in biomedical systems to measure human joint static and dynamic postures. In spite of their interesting properties the commercial bend sensors have a resistance vs. bent angle characteristic which is not actually ideal as a linear function, to measure bend angles, would be. In this work, we have developed a way to calculate the sensor resistance for different bending angles with a generalized strip contour, in order to predict how shaping it with different non-uniform geometries changes the resistance dependence on bending angles, and investigate what kind of strip geometry can lead to a more linear behavior.

Pages: 52 to 55

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-208-0

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012