An optical fiber transducer for single myofibril force measurement

Author

Fearn, Lisa A. ; Bartoo, Marc L. ; Myers, John A. ; Pollack, Gerald H.

Author_Institution

Center for Bioeng., Washington Univ., Seattle, WA, USA

Volume

40

Issue

11

fYear

1993

Firstpage

1127

Lastpage

1132

Abstract

A force transducer has been developed for use in force measurement of skeletal muscle myofibrils. The transducer is suitable for measurement of passive and contractile forces in a range up to 200 mu g, with 1 mu g resolution. It is based upon the operating principle of the deflection of an optical fiber of known compliance, sensed by the differential illumination of two phototransistors. Attractive features include ease of operation and specimen mounting, high bandwidth, adaptability for different force ranges, and simple and inexpensive construction.

Keywords

biological techniques and instruments; biomechanics; fibre optic sensors; force measurement; muscle; compliance; contractile forces; differential illumination; force range; operation ease; optical fiber deflection; optical fiber transducer; passive forces; phototransistors; simple inexpensive construction; single myofibril force measurement; skeletal muscle myofibrils; specimen mounting; Bandwidth; Biomedical measurements; Force measurement; Image analysis; Lighting; Logic testing; Muscles; Optical fibers; Photodiodes; Phototransistors; Signal analysis; Transducers; Biomechanics; Calibration; Equipment Design; Fiber Optics; Myofibrils; Transducers;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.245630

Filename

245630