INSTANTANEOUS FRINGE-ORDER IDENTIFICATION USING DUAL BROAD-BAND SOURCES WITH WIDELY SPACED WAVELENGTHS

被引：33

作者：

CHEN, S ^{[1
]}

GRATTAN, KTV ^{[1
]}

MEGGITT, BT ^{[1
]}

PALMER, AW ^{[1
]}

机构：

[1] CITY UNIV LONDON,DEPT ELECT ELECTR & INFORMAT ENGN,LONDON EC1V 0HB,ENGLAND

来源：

ELECTRONICS LETTERS | 1993年 / 29卷 / 04期

关键词：

OPTICAL FIBERS; OPTICAL SENSORS;

D O I：

10.1049/el:19930226

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 new fringe-order identification technique for interferometric optical fibre sensors is described using dual broadband optical sources coupled with white-light interferometry. Compared with previous work, this technique enables the central (zero-order) fringe to be directly identified through its dominant amplitude, and does not require digitisation and its associated computing power. Therefore, it is suitable for coherence multiplexed quasidistributed sensors and for monitoring quickly varying measurands.

引用

页码：334 / 335

页数：2