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Sensors 2017, 17(3), 443; doi:10.3390/s17030443

Fiber-Optic Sensors for Measurements of Torsion, Twist and Rotation: A Review

Laboratory for Electro Optics and Sensor Systems (LEOSS), Faculty of Electrical Engineering and Computer Science, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
This paper is an invited paper.
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Academic Editors: Manuel Lopez-Amo, Jose Miguel Lopez-Higuera and Jose Luis Santos
Received: 31 December 2016 / Revised: 16 February 2017 / Accepted: 18 February 2017 / Published: 23 February 2017
(This article belongs to the Special Issue Optical Fiber Sensors 2016)

Abstract

Optical measurement of mechanical parameters is gaining significant commercial interest in different industry sectors. Torsion, twist and rotation are among the very frequently measured mechanical parameters. Recently, twist/torsion/rotation sensors have become a topic of intense fiber-optic sensor research. Various sensing concepts have been reported. Many of those have different properties and performances, and many of them still need to be proven in out-of-the laboratory use. This paper provides an overview of basic approaches and a review of current state-of-the-art in fiber optic sensors for measurements of torsion, twist and/or rotation.
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Keywords: fiber optic sensors; twist sensors; rotation sensors; circular birefringence; linear birefringence; FBG; tilted FBG; long period FBG; polarization in optical fibers; optical fibers fiber optic sensors; twist sensors; rotation sensors; circular birefringence; linear birefringence; FBG; tilted FBG; long period FBG; polarization in optical fibers; optical fibers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Budinski, V.; Donlagic, D. Fiber-Optic Sensors for Measurements of Torsion, Twist and Rotation: A Review. Sensors 2017, 17, 443.

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