LED-BASED FIBER OPTIC OXYGEN SENSOR USING SOL-GEL COATING

被引：59
|
作者：
MACCRAITH, BD
OKEEFFE, G
MCDONAGH, C
MCEVOY, AK
机构：
[1] School of Physical Sciences, Dublin City University, Glasnevin
来源：
ELECTRONICS LETTERS | 1994年 / 30卷 / 11期
关键词：
FIBER OPTIC SENSORS; GAS SENSORS; SOL-GEL PROCESSING;
D O I：
10.1049/el:19940578
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：
An intrinsic evanescent wave fibre optic sensor for oxygen is reported, The sensor is based on the quenching of fluorescence from a ruthenium complex trapped m the cage-like structure of a sol-gel-derived porous film on a de-clad section of multimode optical fibre. The sensor exhibits excellent performance using blue LED excitation and silicon photodiode detection, and establishes the viability of low-cost portable sensor devices based on the sol-gel process. Gas phase measurement data over the range 0-100% oxygen exhibit high signal-to-noise ratio (approximately 150), good repeatability and short response time (< 5s).
引用
收藏
页码：888 / 889
页数：2
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