JPS61119753U

JPS61119753U -

Info

Publication number: JPS61119753U
Application number: JP286385U
Authority: JP
Priority date: 1985-01-16
Filing date: 1985-01-16
Publication date: 1986-07-28

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す酸素センサ要
部の模式断面図、第２図は同上の要部拡大図、第
３図は同上の酸素センサの出力特性図、第４図は
酸素センサの従来例を示す要部の模式断面図、第
５図は同上の出力特性図である。２……陽極、３……固体電解質、４……陰極、
１１……第１拡散層、１２……第２拡散層。 Fig. 1 is a schematic sectional view of the main part of an oxygen sensor showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of the same as above, Fig. 3 is an output characteristic diagram of the same oxygen sensor as above, and Fig. 4 is an oxygen FIG. 5 is a schematic cross-sectional view of main parts of a conventional sensor, and FIG. 5 is an output characteristic diagram of the same as above. 2... Anode, 3... Solid electrolyte, 4... Cathode,
11...first diffusion layer, 12...second diffusion layer.

Claims

[Scope of utility model registration request]

In an oxygen sensor, an oxygen ion-conducting solid electrolyte is interposed in the gap between an anode and a cathode facing each other, a voltage is applied between these electrodes, and the oxygen concentration is detected from the value of the current flowing between the two electrodes. A first diffusion layer that covers the outer wall and has a predetermined oxygen permeability, and a second diffusion layer that covers the outer wall of the first diffusion layer and has an oxygen permeability different from that of the first diffusion layer. An oxygen sensor characterized by: