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Microbend fiber-optic bidirectional torsion sensor
Author(s): 
Pages: 321-324
Year: Issue:  3
Journal: Laser & Infrared

Keyword:  sensortorsionfibermicrobend lossbidirection detecting;
Abstract: Based on the study of torsion theory,a new bidirectional multimode fiber winding type torsion sensor was de-signed.The core of sensing structure is two fiber segments which are wrapped around the shaft by the opposite direc-tion and have the same parameters,and torsion parameters are detected by using microbend differential loss of two fi-ber segments.Test results show that the sensor has a good linear response to torsion.In the related fields of torsion de-tection,the sensor has a certain potential application.
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