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Optical sensor based on sensitive polymer layer

机译：基于敏感聚合物层的光学传感器

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摘要

In chemical, oil, and food industries, there are still higher requirements on miniaturization of optical sensors for a concentration measurement of gases e.g. a CO_2, O_2, and NH_3. The paper deals with development of miniaturised optical sensor for an aqueous carbon dioxide measurement using a sensitive polymer layer. The optical sensor module consists of two parts, a remission sensor and a removable layered structure (with incorporated dyed polymer) which is closely placed on the surface of a remission sensor. A dyed polymer film is used as an optical-chemical transducer working on a principle of colour changes caused by a chemical reaction of an analyte and indicator dye. A novel remission sensor module was developed for an evaluation of the spectral absorption changes of sensitive polymer layer. The remission sensor module composed of LED diodes located in a central cavity of the sensor module and PIN diodes situated around the cavity. The LEDs emit light with optimised wavelengths and irradiate the polymer film. Light response (the changes of the spectral absorption) of the irradiated polymer film is detected by PIN diodes. A colour shift is further analyzed and evaluated by electronics without using a photometer.
机译：在化学，石油和食品工业中，对用于气体浓度测量的光学传感器的小型化仍有更高的要求。 CO_2，O_2和NH_3。本文涉及使用敏感聚合物层测量二氧化碳水溶液的小型光学传感器的开发。光学传感器模块由两部分组成：缓解传感器和紧密放置在缓解传感器表面上的可移动分层结构（带有掺入的染色聚合物）。染色的聚合物膜用作光化学换能器，其根据由分析物和指示剂染料的化学反应引起的颜色变化原理工作。开发了一种新型的缓解传感器模块，用于评估敏感聚合物层的光谱吸收变化。缓解传感器模块由位于传感器模块中央腔体中的LED二极管和位于腔体周围的PIN二极管组成。 LED发出具有最佳波长的光并照射聚合物膜。用PIN二极管检测被辐照的聚合物薄膜的光响应（光谱吸收的变化）。电子设备无需使用光度计就可以进一步分析和评估色偏。

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  • 来源
    《Photonics, devices, and systems IV》|2008年|71380A.1-71380A.7|共7页
  • 会议地点 Prague(CS)
  • 作者

    Matthias Will; Tomas Martan; Ralf Mueller; Olaf Brodersen; Gerhard J. Mohr;

  • 作者单位

    CiS - Institute for Micro Sensors GmbH, Konrad-Zuse-Strasse 14, D-99099 Erfurt, Germany;

    CiS - Institute for Micro Sensors GmbH, Konrad-Zuse-Strasse 14, D-99099 Erfurt, Germany Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, v.v.i., Chaberska 57, 182 51 Prague 8, Czech Republic;

    CiS - Institute for Micro Sensors GmbH, Konrad-Zuse-Strasse 14, D-99099 Erfurt, Germany;

    CiS - Institute for Micro Sensors GmbH, Konrad-Zuse-Strasse 14, D-99099 Erfurt, Germany;

    Institute of Physical Chemistry, Friedrich-Schiller University Jena, Lessingstrasse 10, D-07743 Jena, Germany;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程光学;
  • 关键词

    optical remission sensor; LED diodes; PIN diodes; carbon dioxide; dyed polymer layer;

    机译：光学反射传感器； LED二极管PIN二极管；二氧化碳;染色聚合物层;

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