一种用于单根肌原纤维力测量的光纤换能器。

An optical fiber transducer for single myofibril force measurement.

作者信息

Fearn L A, Bartoo M L, Myers J A, Pollack G H

机构信息

Center for Bioengineering, University of Washington, Seattle 98195.

出版信息

IEEE Trans Biomed Eng. 1993 Nov;40(11):1127-32. doi: 10.1109/10.245630.

DOI:10.1109/10.245630

PMID:8307596

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 micrograms, with 1 microgram 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.

摘要

已开发出一种用于测量骨骼肌肌原纤维力的力传感器。该传感器适用于测量高达200微克范围内的被动和收缩力，分辨率为1微克。它基于已知柔顺性的光纤偏转的工作原理，由两个光电晶体管的差分照明来检测。其吸引人的特点包括操作和标本安装简便、带宽高、适用于不同的力范围以及结构简单且成本低廉。