A chirped long period grating sensor for monitoring flow direction and cure of a resin

被引：0

作者：

Wong, Rebecca Y. N. ^{[1
]}

Chehura, Edmond ^{[1
]}

James, Stephen W. ^{[1
]}

Tatam, Ralph P. ^{[1
]}

机构：

[1] Cranfield Univ, Dept Engn Photon, Sch Engn, Cranfield MK43 0AL, Beds, England

来源：

SMART SENSOR PHENOMENA, TECHNOLOGY, NETWORKS, AND SYSTEMS INTEGRATION 2013 | 2013年 / 8693卷

基金：

英国工程与自然科学研究理事会;

关键词：

Long period grating; chirped long period grating; direction; flow; resin cure; refractive index; refractometer; fibre-optic sensor; INDEX;

D O I：

10.1117/12.2009369

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A continuously chirped long period grating (CCLPG) was used to perform directional flow sensing of a UV-cured epoxy resin and to subsequently monitor the resin cure via the measurement of the change in refractive index. The asymmetric nature of the CCLPG led to a change in the shape of the attenuation bands of the transmission spectrum dependent on the direction of flow of the resin along the fibre. The transmission spectrum of a CCLPG was monitored during the resin cure and exhibited a wavelength shift of 1.1 +/- 0.1 nm. The change in the refractive index of the resin during cure was determined in the same experiment using a fibre optic Fresnel based refractometer, and correlated well (correlation coefficient 97 %) with the response of the CCLPG.

引用

页数：8

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