Flexible angular sensor [and biomechanical application]

Author

Roduit, Romain ; Besse, Pierre-André ; Micallef, Jean-Paul

Author_Institution

Inst. of Microsyst., Lausanne, Switzerland

Volume

47

Issue

4

fYear

1998

fDate

8/1/1998 12:00:00 AM

Firstpage

1020

Lastpage

1022

Abstract

A novel flexible sturdy angular sensor, based on a new simple principle, has been realized and successfully tested. This sensor yields the angular value between the extremities independently of the path of the flexible part. The sensitive element is mounted in a Wheatstone bridge, leading to a very simple output signal processing and good temperature independence. The first measurements demonstrate a precision of ±2° on a stroke of 100° and a resolution of less than .1°. Biomechanical applications of this sensor have been demonstrated by measuring knee rotation during walking

Keywords

angular measurement; biomechanics; biomedical measurement; bridge circuits; displacement measurement; electric sensing devices; Wheatstone bridge; angular value between extremities; biomechanical applications; biomechanical sensor; differential measurement; flexible angular sensor; knee rotation measurement; longitudinal displacements; reference goniometer; resistive sensor; simple output signal processing; temperature independence; walking; Biomedical signal processing; Biosensors; Bridge circuits; Extremities; Knee; Lead; Rotation measurement; Signal resolution; Temperature sensors; Testing;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.744661

Filename

744661