JPH0171659U

JPH0171659U -

Info

Publication number: JPH0171659U
Application number: JP1987166491U
Authority: JP
Priority date: 1987-10-30
Filing date: 1987-10-30
Publication date: 1989-05-12

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の概略構成図を示し
、同図Ａはその正面図、同図Ｂは同図ＡのＡ―Ａ
断面図、第２図は本考案の他の実施例の概略構成
図を示し、同図Ａはその正面図、同図Ｂは同図Ａ
のＣ―Ｃ断面図、第３図は本考案のさらに他の実
施例の概略構成図を示し、同図Ａはその正面図、
同図Ｂは同図ＡのＤ―Ｄ断面図、第４図は従来の
湿度センサの概略構成図を示し、同図Ａはその正
面図、同図Ｂは同図ＡのＢ―Ｂ断面図である。１，１：正電極、２，２Ａ：負電極、３：空間
部、５Ａ，５Ｂ：ヒータ、１０，２０：検出部、
１１Ａ，１１Ｂ：ヒータ部、１１０，１２０，１
３０：湿度センサ。 FIG. 1 shows a schematic configuration diagram of an embodiment of the present invention, where A is a front view thereof, and B is a line A-A in FIG.
2 shows a schematic configuration diagram of another embodiment of the present invention, FIG. 2A is a front view thereof, and FIG.
3 shows a schematic configuration diagram of still another embodiment of the present invention, and FIG. 3 shows a front view thereof,
Figure B is a sectional view taken along line DD in Figure A, Figure 4 is a schematic diagram of a conventional humidity sensor, Figure A is its front view, and Figure B is a sectional view taken along line B-B in Figure A. It is. 1, 1: positive electrode, 2, 2A: negative electrode, 3: space, 5A, 5B: heater, 10, 20: detection unit,
11A, 11B: Heater section, 110, 120, 1
30: Humidity sensor.

Claims

[Scope of utility model registration request]

It has a solid electrolyte section consisting of a detection section made of an oxygen ion conductor and provided with positive and negative electrodes, and a heater section provided with a heater, and is capable of electrolyzing moisture in the atmosphere or measurement gas generated in the solid electrolyte section. In a humidity sensor using a limiting current method that detects the amount of oxygen ions as a current value, the porous positive electrode of the detection section is embedded in the solid electrolyte section without directly contacting the atmosphere or the measurement gas, and A humidity sensor characterized in that the heater section is configured outside the detection section so that both sides of the detection section are sandwiched between the heaters.