title: Fiber-Optic Sensors for Measurements of Torsion, Twist and Rotation: A Review.
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.Invited Paper.
authors.affiliation: Laboratory for Electro Optics and Sensor Systems (LEOSS), Faculty of Electrical Engineering and Computer Science, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia. vedran.budinski@um.si.
authors.forename: Vedran
authors.initials: V
authors.lastname: Budinski
authors.affiliation: Laboratory for Electro Optics and Sensor Systems (LEOSS), Faculty of Electrical Engineering and Computer Science, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia. denis.donlagic@um.si.
authors.forename: Denis
authors.initials: D
authors.lastname: Donlagic
keywords: FBG; circular birefringence; fiber optic sensors; linear birefringence; long period FBG; optical fibers; polarization in optical fibers; rotation sensors; tilted FBG; twist sensors