title: A Wide-Range Displacement Sensor Based on Plastic Fiber Macro-Bend Coupling.
abstract: This paper proposes the strategy of fabricating an all fiber wide-range displacement sensor based on the macro-bend coupling effect which causes power transmission between two twisted bending plastic optical fibers (POF), where the coupling power changes with the bending radius of the fibers. For the sensor, a structure of two twisted plastic fibers is designed with the experimental platform that we constructed. The influence of external temperature and displacement speed shifts are reported. The displacement sensor performance is the sensor test at different temperatures and speeds. The sensor was found to be satisfactory at both room temperature and 70 °C when the displacement is up to 140 mm. The output power is approximately linear to a displacement of 110 mm-140 mm under room temperature and 2 mm/s speed at 19.805 nW/mm sensitivity and 0.12 mm resolution. The simple structure of the sensor makes it reliable for other applications and further utilizations, promising a bright future.
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. 18734920710@163.com.|Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China. 18734920710@163.com.
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. houyulongnuc@163.com.
authors.forename: Yulong
authors.initials: Y
authors.lastname: Hou
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. zhanghx@nuc.edu.cn.
authors.forename: Huixin
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. pgjia@nuc.edu.cn.
authors.forename: Pinggang
authors.initials: P
authors.lastname: Jia
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. 18880480379@163.com.
authors.forename: Shan
authors.initials: S
authors.lastname: Su
authors.affiliation: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China. gcfang_nuc@163.com.
authors.forename: Guocheng
authors.initials: G
authors.lastname: Fang
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. liu_wenyi418@126.com.|Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China. liu_wenyi418@126.com.
authors.forename: Wenyi
authors.initials: W
authors.lastname: Liu
authors.affiliation: Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China. xiongjijun@nuc.edu.cn.|Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China. xiongjijun@nuc.edu.cn.
authors.forename: Jijun
authors.initials: J
authors.lastname: Xiong
keywords: POF; coupling; displacement sensor; macro-bend