公开(公告)号：WO2016184792A1

公开(公告)日：2016-11-24

申请号：PCT/EP2016/060805

申请日：2016-05-13

Applicant: ABB TECHNOLOGY AG

Inventor： VAN MECHELEN, Jacobus, Lodevicus, Martinus ,  GREMAUD, Robin ,  WESTERWAAL, Ruud, Johannes ,  DAM, Bernhard

IPC: G01N33/00 ,  G01N33/28 ,  G01N21/77 ,  G01N21/85 ,  H01F27/40

CPC classification number: G01N21/7703 ,  G01N21/8507 ,  G01N33/2841 ,  G01N2021/772 ,  G01N2021/7773 ,  H01F27/12 ,  H01F27/402 ,  H01F2027/406

Abstract: An optical sensing system for sensing hydrogen in a fluid comprising a first optical sensor comprising a first optical fiber, wherein an end portion of the first optical fiber is coated with a first hydrogen- sensitive multilayer on an end surface perpendicular to a longitudinal axis of the first optical fiber, the first multilayer being adapted to change its optical properties dependent on a hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known first characteristic; a second optical sensor comprising a second optical fiber, wherein an end portion of the second optical fiber is coated with a second hydrogen-sensitive multilayer on an end surface perpendicular to the longitudinal axis of the second optical fiber, the second multilayer being adapted to change its optical properties dependent on the hydrogen partial pressure in the fluid and dependent on a temperature of the fluid, with a known second characteristic which is different from the first characteristic; at least one light source adapted for coupling light into the first optical fiber and the second optical fiber, at least one light detector adapted for detecting light reflected by the first and second multilayer, a control unit adapted for calculating the hydrogen partial pressure in the fluid by using the first characteristic and the second characteristic and an output signal of the at least one light detector.

Abstract translation: 一种用于感测流体中的氢的光学感测系统，包括包括第一光纤的第一光学传感器，其中第一光纤的端部在垂直于所述第一光纤的纵轴的端面上涂覆有第一感氢多层 第一光纤，第一多层适于改变其光学特性，取决于流体中的氢分压并且取决于流体的温度，具有已知的第一特性; 包括第二光纤的第二光学传感器，其中所述第二光纤的端部在与所述第二光纤的纵向轴线垂直的端面上涂覆有第二氢敏多层，所述第二多层适于改变 其光学性质取决于流体中的氢分压并且取决于流体的温度，具有与第一特性不同的已知第二特性; 适于将光耦合到第一光纤和第二光纤中的至少一个光源，适于检测由第一和第二多层反射的光的至少一个光检测器，适于计算流体中的氢分压的控制单元 通过使用第一特性和第二特性以及至少一个光检测器的输出信号。

公开(公告)号：WO2016091598A1

公开(公告)日：2016-06-16

申请号：PCT/EP2015/077722

申请日：2015-11-26

Applicant: ABB TECHNOLOGY AG

Inventor： VAN MECHELEN, Jacobus Lodevicus Martinus ,  GREMAUD, Robin ,  WESTERWAAL, Ruud Johannes ,  DAM, Bernhard

IPC: G01N21/78 ,  G01N33/00 ,  G01N33/28 ,  G02F1/15 ,  H01F27/40 ,  G01N21/29 ,  G01N21/77

CPC classification number: G01N21/783 ,  G01N21/29 ,  G01N31/224 ,  G01N33/2841 ,  G01N2021/7773 ,  G01N2021/7783 ,  G01N2201/0616 ,  H01F27/402 ,  H01F2027/404

Abstract: A sensing system for detecting hydrogen in an insulation fluid (8) of an electrical device (10) is provided. The system comprises: a sensing element (15) which comprises an optically transparent substrate (20); a sensing layer (25) coated on the substrate, comprising a metal-comprising thin film which changes its transparency due to hydrogenation when exposed to a defined hydrogen concentration; a catalytic layer (30) adjacent to the sensing layer; and a permanent visual indicator (40) located adjacent to the substrate (20), such that the substrate is positioned in a line of sight between the permanent visual indicator (40) and an observer of the sensing system (1), such that the permanent visual indicator (40) becomes visible to an observer at a defined hydrogen concentration.

Abstract translation: 提供了一种用于检测电气设备（10）的绝缘流体（8）中的氢的感测系统。 该系统包括：感测元件（15），其包括光学透明基底（20）; 涂覆在所述基底上的感测层（25），其包含含金属的薄膜，当暴露于限定的氢浓度时，其改变其由氢化引起的透明度; 与传感层相邻的催化层（30）; 以及位于所述基板（20）附近的永久性视觉指示器（40），使得所述基板位于所述永久性视觉指示器（40）和所述感测系统（1）的观察者之间的视线中，使得所述基板 永久性视觉指示剂（40）在规定的氢浓度下变得对观察者可见。