Temperature-independent measurement of displacement based on the chirp tuning of a fiber grating

Xiufeng Yang; Xinyong Dong; Chun-liu ZhaoJun Hong NgQlzhen PengXlaoqun ZhouChao Lu

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Temperature-independent measurement of displacement based on the chirp tuning of a fiber grating

机译：Temperature-independent measurement of displacement based on the chirp tuning of a fiber grating

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摘要

We report the temperature-independent measurement of displacement based on the chirp tuning of a fiber grating and a specially designed cantilever. The 3-dB bandwidth of the chirped grating changes linearly with displacement and is independent of the temperature. The displacement can be monitored directly by measuring the reflected light from the chirp grating. A linear displacement response of 37.063 mV/mm was obtained. The fluctuation of the output signal is less than 5percent for a temperature range from 20 to 60 deg C without any temperature compensation technique. The sensor has potentially low cost due to its simple structure.

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来源
《Optical Engineering》 |2005年第7期|074401-1-074401-4-0|共4页
作者
Xiufeng Yang; Xinyong Dong; Chun-liu ZhaoJun Hong NgQlzhen PengXlaoqun ZhouChao Lu;
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作者单位

Institute for Infocomm Research Unit 230, Blk2 Innovation Center Nanyang Drive Singapore 637723;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
fiber optic sensors; chirped fiber gratings; temperature-independent; displacement;

Temperature-independent measurement of displacement based on the chirp tuning of a fiber grating

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