JPH01134252U

JPH01134252U -

Info

Publication number: JPH01134252U
Application number: JP3033588U
Authority: JP
Priority date: 1988-03-09
Filing date: 1988-03-09
Publication date: 1989-09-13

Description

[Brief explanation of the drawing]

第１図は本考案実施例の酸素センサ素子（及び
ヒータ）を各要素ごとに示した斜視図、第２図は
上記例の酸素センサ素子の断面図（電極存在部位
に係るもの）、及び第３図は上記例の酸素センサ
素子については基準電極の外周面積の割合（測定
電極の外周面積に対するもの）と内部抵抗Ωとの
関係を示すグラフ、を夫々表わす。Ａ…酸素センサ素子、２ａ…基準電極、３…固
体電解質体（層）、４ａ…測定電極。 FIG. 1 is a perspective view showing each element of the oxygen sensor element (and heater) according to the embodiment of the present invention, and FIG. FIG. 3 is a graph showing the relationship between the ratio of the outer peripheral area of the reference electrode (relative to the outer peripheral area of the measuring electrode) and the internal resistance Ω for the oxygen sensor element of the above example. A...Oxygen sensor element, 2a...Reference electrode, 3...Solid electrolyte body (layer), 4a...Measurement electrode.

Claims

[Scope of Claim for Utility Model Registration] (1) In an oxygen sensor element comprising a reference electrode on one side of a solid electrolyte body and a measurement electrode on the opposite side, the outer circumference area of the reference electrode is larger than the outer circumference area of the measurement electrode. It is small (70% of the outer peripheral area of the measurement electrode).
(above), an oxygen sensor element in which the measurement electrode is arranged in a pattern in which areas where electrode material is present and areas where electrode material is absent are alternately distributed, and the adjacent areas are in communication with each other. . (2) In an oxygen sensor element comprising a reference electrode on one side of a solid electrolyte body, a measurement electrode on the opposite side, and a fixed electrolyte body wound around a tubular base, the outer peripheral end face of the reference electrode and the outer peripheral end face of the measuring electrode and are deviated by 0.2 mm or more in the radial direction of the solid electrolyte body, and the measurement electrode is located with areas where the electrode material is present and areas where the electrode material is not present alternately distributed, and adjacent areas where the electrode material is present are mutually separated. The oxygen sensor element is formed of a pattern that is connected to the oxygen sensor element.