高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (7): 1047.

• 研究快报 • 上一篇    下一篇

一种新的基于折射率变化的光纤化学传感器

王柯敏, 周雷激, 毛大军, 羊小海   

  1. 湖南大学化学化工学院, 长沙 410082
  • 收稿日期:1999-01-29 出版日期:1999-07-24 发布日期:1999-07-24
  • 通讯作者: 王柯敏,男,41岁,博士,教授.
  • 作者简介:王柯敏,男,41岁,博士,教授.
  • 基金资助:

    国家自然科学基金(批准号:29675005);国家杰出青年科学基金(批准号:29825110);湖南省中青年人才科学基金(批准号:98JZY2173)资助课题

A Novel Fiber-optic Chemical Sensor Based on Change of Sample Refractive Index

WANG Ke-Min, ZHOU Lei-Ji, MAO Da-Jun, YANG Xiao-Hai   

  1. College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082
  • Received:1999-01-29 Online:1999-07-24 Published:1999-07-24

摘要: 在光纤化学传感器中,基于样品折射率变化的传感器是其中的重要分支,并获得了广泛的实际应用[1].根据敏感部件的不同可将其分为两大类:一类的敏感部件是裸光纤,这类传感器已用于检测苯、甲醇和丙酮[2],测定血样中葡萄糖浓度[3],鉴定燃油质量.

关键词: 光纤, 模式滤光, 折射率, 传感器

Abstract: Anovel unclad optical chemical sensor is reported. This sensor is operated by the detection of the mode-filtered light emanating from an optical fiber based on the changes of analyte refractive index(RI). Compared with measuring changes in the transmitted light at the end of the fiber optic, it has a great advantage in signal to noise ratio(S/N) against a low background. In this paper, response characteristics of the sensor are discussed by measure-ment of ethanol and acetic acid respectively. The sensor is hoped to have good prospects of applications in practice.

Key words: Fiber optic, Mode-filtered light, Refractive index, Sensor

中图分类号: 

TrendMD: