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Experimental study of plastic optical fiber TNT sensor based on evanescence absorption

机译：基于消融吸收的塑料光纤TNT传感器实验研究

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摘要

Here, the concentration of TNT was detected by using evanescent absorption method, U-shaped plastic optical fiber was used as sensor head and light transmit element. A high brightness blue light-emitting diode with spectrum centered at 470 nm was used as excitation source. The relationship between the transmitted light power of U-shaped sensor head and TNT concentration was linearly and the linear coefficient was 0.944. The system showed excellent reversibility when the sensor tested by alternately cycling between 0 and 25 mg/100 ml TNT solution in five cycles. The stability of the sensor head in 25 mg/100 ml TNT solution was also tested within two hours. The proposed sensor is a cost-effective alternative to traditional TNT sensors and provides a platform for other optically based sensors.
机译：采用倏逝吸收法检测TNT浓度，采用U型塑料光纤作为传感器头和透光元件。采用光谱中心为470 nm的高亮度蓝光发光二极管作为激发源。U型传感器头透射光功率与TNT浓度呈线性关系，线性系数为0.944。当传感器在 0 和 25 mg/100 ml TNT 溶液之间交替循环进行测试时，该系统显示出出色的可逆性。传感器头在25 mg/100 ml TNT溶液中的稳定性也在两小时内进行了测试。所提出的传感器是传统TNT传感器的一种具有成本效益的替代品，并为其他基于光学的传感器提供了一个平台。

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  • 来源
    《Optical Engineering》 |2012年第5期|054403-1-054403-3|共3页
  • 作者

    Fenghong Chu;

  • 作者单位

    Shanghai University of Electric Power, School of Computer Science and Information Technology, 2103 Pingliang Road, Shanghai 200090, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 计量学;
  • 关键词

    TNT; sensor; plastic optical fiber; evanescent;

    机译：TNT;传感器;塑料光纤;消逝;

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