Optical fiber sensor for simultaneous measurement of strain and temperature

被引：32

作者：

Jin, XD

Sirkis, JS

Chung, JK

机构：

来源：

SMART SENSING, PROCESSING, AND INSTRUMENTATION - SMART STRUCTURES AND MATERIALS 1997 | 1997年 / 3042卷

关键词：

in-line fiber etalon; Bragg grating; temperature; strain; F-P interferometer;

D O I：

10.1117/12.275764

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An optical fiber sensor for simultaneous measurement of axial strain and temperature is reported. This sensor configuration consists of an in-line fiber etalon (ILFE) cascaded with a in-fiber Bragg grating (BG) and demultiplexed using a variation of coherence division multiplexing. The strain/temperature sensor is demonstrated by bonding it to the surface of an aluminum cantilever beam and embedding it into a graphite/epoxy composite cantilever beam. They are found to agree with traditional strain and temperature sensors to within 5 mu epsilon and 0.5 degrees C, respectively for a sensor gage length of similar to 1.0cm.

引用

页码：120 / 127

页数：8