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A distributed optical fiber sensor for hydrogen detection based on Pd, and Mg alloys

机译：基于Pd和Mg合金的用于氢气检测的分布式光纤传感器

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摘要

An optical fiber containing structured hydrogen sensing points, consisting of Palladium and/or Magnesium alloys is proposed and characterized. The sensitive layer is deposited on the outside of a multimode fiber, after removing the optical cladding. The sensor is based on a measurement technique which uses the Surface Plasmon Resonance effect. Compared to previous work which was performed at a single wavelength of 670nm, this study was done in the range of 450 to 900nm. A continuous change in intensity is observed as a function of the hydrogen concentration between 0.5% and 4% H_2 in Ar. The response shows that the intensity transmitted can either decrease or increase, depending on the selected wavelength. The response time and the reproducibility of the detectors are also discussed. From our experiments and optical simulations we conclude that Pd covered indicator layers based on Mg alloys, such as Mg-Ti, would be even more advantageous compare to Pd layers thanks to their lower hydrogen equilibrium pressures. We will demonstrate an extended sensitivity range by juxtaposing different materials over a fiber section, having different hydrogen equilibrium pressures.
机译：提出并表征了包含由钯和/或镁合金构成的结构化氢感测点的光纤。除去光学包层后，敏感层沉积在多模光纤的外部。该传感器基于使用表面等离振子共振效应的测量技术。与以前在670nm的单个波长下进行的工作相比，本研究在450至900nm的范围内进行。观察到强度的连续变化是Ar中0.5％到4％H_2之间氢浓度的函数。该响应表明，所传输的强度可以减小或增大，具体取决于所选的波长。还讨论了检测器的响应时间和可重复性。从我们的实验和光学模拟中，我们得出结论，由于Pd覆盖的指示剂层具有较低的氢平衡压力，因此与Pd层相比，它覆盖了基于Mg合金的指示层，例如Mg-Ti，甚至更具优势。我们将通过在纤维截面上并置不同的材料（具有不同的氢平衡压力）来展示更大的灵敏度范围。

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  • 来源
  • 会议地点 Orlando FL(US)
  • 作者

    C. Perrotton; M. Slaman; N. Javahiraly; H. Schreuders; B. Dam; P. Meyrueis;

  • 作者单位

    Laboratoire des systemes photoniques, Universite de Strasbourg, Pole API, Bvd Sebastien Brant, 67400 Illkirch, France;

    rnDelft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands Faculty of Sciences, Department of Physics and Astronomy, Condensed Matter Physics, Vrije Universiteit, De Boelelaan 1081,1081 HV Amsterdam, The Netherlands;

    rnLaboratoire des systemes photoniques, Universite de Strasbourg, Pole API, Bvd Sebastien Brant, 67400 Illkirch, France;

    rnDelft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands;

    rnDelft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands;

    rnLaboratoire des systemes photoniques, Universite de Strasbourg, Pole API, Bvd Sebastien Brant, 67400 Illkirch, France;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用光学;交通运输机械工业;
  • 关键词

    optical fiber; SPR; hydrogen sensor; palladium; magnesium alloys;

    机译：光纤; SPR;氢传感器钯;镁合金;

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