公开(公告)号：US4266196A

公开(公告)日：1981-05-05

申请号：US25571

申请日：1979-03-30

申请人： Kazuyoshi Kawazoe ,  Yoshinori Takata ,  Mon Suzuki ,  Shizuo Uehara

发明人： Kazuyoshi Kawazoe ,  Yoshinori Takata ,  Mon Suzuki ,  Shizuo Uehara

IPC分类号： G01N27/64 ,  G01N27/66 ,  G01N30/64 ,  G01N27/62

CPC分类号： G01N30/64 ,  G01N27/66 ,  G01N2030/642

摘要： A gas detecting means of this invention is provided with a discharge section which radiates light by electric discharge, a detecting section which collects an ion current of a sample gas ionized by the light, and an optical path which connects the discharge and the detecting sections. The discharge is formed by a pointed cathode and an anode having a penetration hole. The tip of the pointed cathode is directed to the optical path. The diameter of the penetration hole of the anode is smaller than that of the optical path. The anode is disposed in such a manner that any peripheral part of an inlet of the penetration hole is at an equal distance from the tip of the cathode. Both the discharge section and the detecting section are shielded electrically by an outer shell of metal.

摘要翻译： 本发明的气体检测装置设置有通过放电辐射光的放电部分，收集由光离子化的样品气体的离子电流的检测部分和连接放电和检测部分的光路。 放电由具有穿透孔的尖锐阴极和阳极形成。 尖锐阴极的尖端被引导到光路。 阳极的穿透孔的直径小于光路的直径。 阳极以这样的方式设置，使得穿透孔的入口的任何外围部分处于与阴极的尖端相等的距离处。 放电部和检测部均由金属外壳电隔离。