Low-cost all-fiber Bragg grating sensing system for temperature and strain measurements

Andrea Cusano; Giovanni Breglio; Michele GiordanoLuigi Nicolais

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Low-cost all-fiber Bragg grating sensing system for temperature and strain measurements

机译：Low-cost all-fiber Bragg grating sensing system for temperature and strain measurements

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摘要

A low-cost all-fiber Bragg grating sensing system for temperature and strain measurements is presented. Broadband interrogation and grating-based optical filtering are used to detect a strain- or temperature-induced Bragg wavelength shift with a resolution of 1 (mu)(epsilon) and 0.1 deg C. The passive nature of the grating demodulation enables dynamic measurements, limited only by the electronic circuitry involved in the system read out. The same system is also used for dynamic strain detection. A fiber grating is bonded to a piezoceramic actuator in different configurations. A laser-triangulation-based system is used as a reference measurements up to 10 kHz, while dynamic strain measurements by a Fiber Bragg grating (FBG) are carried out up to 50 kHz, demonstrating a dynamic resolution of approx=40 n(epsilon)/(Hz)~(1/2).

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来源
《Optical Engineering》 |2005年第8期|084402-1-084402-7-0|共7页
作者
Andrea Cusano; Giovanni Breglio; Michele GiordanoLuigi Nicolais;
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作者单位

University of Naples "Federico II" Department of Electronic and Telecommunication Engineering Via Claudio 21 80125 Napoli, Italy;

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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; fiber Bragg grating; strain and temperature sensor; dynamic measurements;

Low-cost all-fiber Bragg grating sensing system for temperature and strain measurements

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