FIBEROPTIC DUAL-TECHNIQUE SENSOR FOR SIMULTANEOUS MEASUREMENT OF STRAIN AND TEMPERATURE

被引：96
|
作者：
VENGSARKAR, AM
MICHIE, WC
JANKOVIC, L
CULSHAW, B
CLAUS, RO
机构：
[1] STRATHCLYDE UNIV, OPTOELECTR GRP, GLASGOW G1 1XW, SCOTLAND
[2] VIRGINIA POLYTECH INST & STATE UNIV, BRADLEY DEPT ELECT ENGN, FIBER ELECTROOPT RES CTR, BLACKSBURG, VA 24061 USA
[3] UNIV BELGRADE, FAC CIVIL ENGN, YU-11000 BELGRADE, YUGOSLAVIA
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1994年 / 12卷 / 01期
关键词：
D O I：
10.1109/50.265750
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：
Polarimetric and two-mode differential interferometric schemes incorporated in an elliptical-core fiber are able to resolve strain and temperature simultaneously with resolutions of 10 mum/m and 5-degrees-C, respectively. A technique, based on the evaluation of the condition number of a matrix, is shown to be useful in evaluating comparative merits of multiparameter sensing schemes. The determinant of the beat length matrix is expressed in terms of mode propagation constants, and a method for designing specialized fibers suitable for simultaneous measurement of strain and temperature is proposed. Experimental results for four fibers are presented and cross-sensitivity issues are discussed.
引用
收藏
页码：170 / 177
页数：8
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