JPS61140957U

JPS61140957U -

Info

Publication number: JPS61140957U
Application number: JP2418285U
Authority: JP
Priority date: 1985-02-23
Filing date: 1985-02-23
Publication date: 1986-09-01
Anticipated expiration: 2000-02-23
Also published as: JPH0612528Y2

Description

[Brief explanation of the drawing]

第１図は本考案の電気化学的装置の一実施例を
外部回路と共に示す線図、第２図に第１図に示す
電気化学的素子を保護外被内に固定してセンサと
して組立てた一実施例を示す部分断面図、第３図
は本考案の電気化学的装置の他の実施例を外部回
路と共に示す線図、第４図Ａ，Ｂは第３図に示す
実施例のコネクター部を示す平面図および断面図
、第５図は本考案の電気化学的装置のさらに他の
実施例を外部回路と共に示す線図、第６図Ａ，Ｂ
は第５図に示す実施例のコネクター部を示す部分
断面図および―線にそつた断面図、第７図は
本考案の電気化学的装置のさらに他の実施例を外
部回路と共に示す線図、第８図は第７図に示す実
施例の一対の抵抗素子の一実施例を示す線図であ
る。３，３３……固体電解質、１，３１……第１の
電極、２，３２……第２の電極、４，３８……拡
散律速部、５０，５２……コネクター部、８，９
……抵抗素子、４９……ポテンシヨメータ。 Fig. 1 is a diagram showing an embodiment of the electrochemical device of the present invention together with an external circuit, and Fig. 2 shows an example of the electrochemical device shown in Fig. 1 fixed within a protective jacket and assembled as a sensor. FIG. 3 is a diagram showing another embodiment of the electrochemical device of the present invention together with an external circuit; FIGS. 4A and 4B are diagrams showing the connector section of the embodiment shown in FIG. FIG. 5 is a diagram showing still another embodiment of the electrochemical device of the present invention together with an external circuit; FIG. 6 is a diagram showing A and B.
are a partial sectional view and a sectional view taken along the line - - of the embodiment shown in FIG. 5; FIG. 7 is a line diagram showing still another embodiment of the electrochemical device of the present invention together with an external circuit; FIG. 8 is a diagram showing one embodiment of the pair of resistive elements of the embodiment shown in FIG. 7. 3, 33...Solid electrolyte, 1,31...First electrode, 2,32...Second electrode, 4,38...Diffusion controlling part, 50,52...Connector part, 8,9
...Resistance element, 49...Potentiometer.

Claims

[Claims for Utility Model Registration] 1. A first electrode and a second electrode comprising an oxygen ion conductive solid electrolyte, a pair of porous electrodes provided in contact with both sides of the solid electrolyte, and An electrochemical cell comprising a diffusion-limiting section that connects the electrode to a space in which the gas to be measured is present at a predetermined diffusion resistance with respect to the gas to be measured, and an external measurement control section connected to the electrochemical cell. The gas atmosphere near the first electrode is changed by pumping the electrochemical cell, and the concentration of the gas to be measured is determined by the pumping current value of the electrochemical cell when the gas atmosphere change occurs. In an electrochemical device for detecting, a pair of resistance elements connected in series with the electrochemical cell and dividing the pumping current are disposed at least between the electrochemical cell and the connector part. An electrochemical device characterized by: 2. A second electrochemical cell consisting of an oxygen ion conductive solid electrolyte and third and fourth electrodes provided on both sides of the solid electrolyte, the third electrode being the first electrode of the electrochemical cell. 2. The electrochemical device according to claim 1, which is integrally provided adjacent to the electrochemical device. 3 Utility model registration claim 1 in which the pair of resistive elements are provided within the protective jacket of the electrochemical cell
3. The electrochemical device according to item 1 or 2. 4 Utility model registration claim 1 or 2 in which the pair of resistive elements are provided within the connector portion
Electrochemical device as described in Section. 5. The electrochemical device according to claim 1 or 2, wherein the pair of resistance elements is provided on a connection line between the electrochemical cell and the connector portion.