High-sensitivity pressure sensor using a shielded polymer-coated fiber Bragg grating

被引：143

作者：

Zhang, Y ^{[1
]}

Feng, DJ

Liu, ZG

Guo, ZY

Dong, XY

Chiang, KS

Chu, BCB

机构：

[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China

[2] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

[3] City Univ Hong Kong, Optoelect Res Ctr, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2001年 / 13卷 / 06期

基金：

中国国家自然科学基金;

关键词：

fiber Bragg grating; fiber sensor; pressure sensor; polymer;

D O I：

10.1109/68.924043

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：

We demonstrate a novel high-sensitivity pressure sensor, which is based on the use of a fiber Bragg grating (FBG) embedded in a polymer-filled metal cylinder with an opening on one side to enhance the pressure sensitivity. The measured pressure sensitivity of the fractional change in the Bragg wavelength of our experimental sensor is -3.41 x 10(-3) MPa-1, which is approximately 1720 times higher than that can be achieved with a bare FBG, The linearity of our sensor is also good. This sensor should find applications in the area of low-pressure measurement.

引用

页码：618 / 619

页数：2

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