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11. 发明公开

EP2085768A1 HYDROGEN SENSOR AND HYDROGEN GAS DETECTOR 有权
标题翻译： Wasserstoffgasdetektor
公开(公告)号：EP2085768A1
公开(公告)日：2009-08-05
申请号：EP07790562.8
申请日：2007-07-10
申请人： Kabushiki Kaisha Atsumitec , National Institute of Advanced Industrial Science and Technology
发明人： UCHIYAMA, Naoki , MATSUDA, Naoki , YOSHIMURA, Kazuki , KATO, Kenji
IPC分类号： G01N21/77 , G01N21/78
CPC分类号： G01N21/7703 , G01N21/783 , G01N2021/7773 , Y10T436/22
摘要： A hydrogen sensor includes a thin film layer formed on a top surface of a planar optical transmission medium, and a catalyst layer formed on a top surface of the thin film layer. A first interface is created between the planar optical transmission medium and the thin film layer. A substrate is joined to a bottom surface of the planar optical transmission medium so that a second interface is created between the planar optical transmission medium and the substrate. On entering a first end portion of the planer optical transmission medium, light from a light source is spread by an entrance section, and the spread light is transmitted inside the planar optical transmission medium to a second end portion by being reflected by the first and second interfaces alternately. Light exiting from the second end portion is transmitted to an optical sensor by an exit light-collecting section. If the thin film layer is hydrogenated by the catalyst layer contacted by hydrogen, the amount of light reflected from the first interface reduces. Hydrogen gas is detected by the optical sensor detecting such reduction in the amount of light.
摘要翻译：氢传感器包括形成在平面光传输介质的顶表面上的薄膜层和形成在薄膜层的顶表面上的催化剂层。在平面光传输介质和薄膜层之间产生第一界面。基板被接合到平面光传输介质的底表面，使得在平面光传输介质和基板之间产生第二界面。在进入平面光传输介质的第一端部分时，来自光源的光被入射部分扩展，并且扩散光在平面光传输介质内传播到第二端部，被第一和第二反射接口交替。从第二端部出射的光通过出射光收集部传送到光学传感器。如果薄膜层被氢接触的催化剂层氢化，则从第一界面反射的光量减少。检测到这样的光量的减少的光学传感器检测到氢气。

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