Title :
Temperature and Strain Independent Modal Interferometric Torsion Sensor Using Photonic Crystal Fiber
Author :
Nalawade, Sandipan M. ; Harnol, Sagar S. ; Thakur, Harneet V.
Author_Institution :
Dept. of Appl. Phys., Defense Inst. of Adv. Technol., Pune, India
Abstract :
An all-fiber modal interferometric torsion sensor based on simple splicing configuration is presented wherein a photonic crystal fiber is spliced in between multimode fiber and single mode fiber. Appreciable torsion sensitivity of ~79.83 pm/° is obtained in the long dynamic range of 180°. It is also found that there is no effect of strain and temperature on torsion sensitivity in the range of 0-4500 με and 30-200°C, respectively, leading to zero cross-sensitivity of torsion with strain and temperature.
Keywords :
fibre optic sensors; light interferometers; photonic crystals; strain sensors; temperature sensors; all-fiber modal interferometric torsion sensor; multimode fiber; photonic crystal fiber; single mode fiber; strain independent modal interferometric torsion sensor; temperature 30 degC to 200 degC; temperature independent modal interferometric torsion sensor; torsion cross-sensitivity; Optical fiber sensors; Photonic crystal fibers; Sagnac interferometers; Sensitivity; Strain; Temperature measurement; Temperature sensors; Modal interferometer; photonic crystal fiber; strain; temperature; torsion;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2012.2198809
