JPS6397850U

JPS6397850U -

Info

Publication number: JPS6397850U
Application number: JP19233986U
Authority: JP
Priority date: 1986-12-16
Filing date: 1986-12-16
Publication date: 1988-06-24

Description

[Brief explanation of the drawing]

第１図〜第３図は本考案の一実施例を示すもの
で、第１図は一部を省略して平面的に示す構成図
、第２図は第１図の−線断面による構成図、
第３図は発熱体の抵抗・温度特性を示すグラフ、
第４図は従来例を示すもので第２図に対応する図
、第５図は第４図に示すガス検知素子の斜視図、
第６図および第７図は他の従来例を示すもので、
それぞれ第４図および第５図に対応する図である
。１１……ガス検知素子、１２……発熱体、１３
……電極、１４……絶縁性被膜、１５……半導体
被膜。 1 to 3 show one embodiment of the present invention, in which FIG. 1 is a planar configuration diagram with some parts omitted, and FIG. 2 is a configuration diagram taken in cross section along the - line in FIG. ,
Figure 3 is a graph showing the resistance and temperature characteristics of the heating element.
FIG. 4 shows a conventional example and corresponds to FIG. 2, and FIG. 5 is a perspective view of the gas detection element shown in FIG. 4.
6 and 7 show other conventional examples,
FIG. 5 is a diagram corresponding to FIG. 4 and FIG. 5, respectively. 11... Gas detection element, 12... Heating element, 13
... Electrode, 14 ... Insulating film, 15 ... Semiconductor film.

Claims

[Scope of utility model registration request]

In a gas detection element, a semiconductor coating is provided on the surface of a heating element that is heated to a predetermined temperature, and gas detection is performed by the effect of increasing electrical conductivity due to gas contact of the semiconductor coating in the predetermined temperature range.・Constructed from ceramics with temperature characteristics,
A gas sensing element characterized in that an electrode is connected to the heating element, and the heating element and the semiconductor film are insulated by an insulating film.