公开(公告)号：EP1215492A2

公开(公告)日：2002-06-19

申请号：EP01204821.1

申请日：2001-12-10

Applicant: Delphi Technologies, Inc.

Inventor： Wang, Da Yu ,  Kikuchi, Paul Casey ,  Symons, Walter Thomas ,  Polikarpus, Kaius Kiiren ,  Oberdier, Larry M.

IPC: G01N27/407

CPC classification number: G01N27/419

Abstract: A gas sensor, comprising an oxygen pump cell with a first pump electrode (40) and a second pump electrode (42) disposed on opposite sides of a first solid electrolyte layer (30) and a second pump electrode (42). The sensor also comprises an emf cell with an emf electrode (44) and a reference gas electrode (46) disposed on opposite sides of a second solid electrolyte layer (32). The emf electrode (44) is disposed in fluid communication to the second pump electrode (42). A via hole (50) is disposed through the first solid electrolyte layer (30), such that the first pump electrode (40) is in fluid communication with the second pump electrode (42). A protective insulating layer (20), having a passage for gas to be sensed, is disposed in contact with the first pump electrode (40). A first insulating layer (22), having a conduit (54), is disposed in contact with the emf electrode (44). A second insulating layer (24), having an air channel (56), is disposed in contact with the reference gas electrode (46). A heater (60) is disposed in thermal communication with the emf cell. At least four electrical leads are in electrical communication with the sensor. A method of producing a gas sensor is disclosed.

Abstract translation: 一种气体传感器，包括具有设置在第一固体电解质层（30）和第二泵电极（42）的相对侧上的第一泵电极（40）和第二泵电极（42）的氧泵电池。 传感器还包括具有emf电极（44）和设置在第二固体电解质层（32）的相对侧上的参考气体电极（46）的emf单元。 电动电极（44）设置成与第二泵电极（42）流体连通。 通孔（50）通过第一固体电解质层（30）设置，使得第一泵电极（40）与第二泵电极（42）流体连通。 具有用于检测气体通道的保护绝缘层（20）设置成与第一泵电极（40）接触。 具有导体（54）的第一绝缘层（22）设置成与电极电极（44）接触。 具有空气通道（56）的第二绝缘层（24）设置成与参考气体电极（46）接触。 加热器（60）设置成与电磁电池热连通。 至少四个电引线与传感器电连通。 公开了一种生产气体传感器的方法。