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2024年12月29日发(作者:java迭代器)

专利内容由知识产权出版社提供

专利名称:DETECTION ELEMENT

发明人:MINOWA TAKESHI,SHIOMI

HARUHISA,AOYAMA TOSHIHIKO

申请号:JP31579886

申请日:19861226

公开号:JPS63165752A

公开日:19880709

摘要:PURPOSE:To avoid the damage of a sensor element part, by filling the piercing

hole of an insulating substrate based on alumina with the sensor element part composed

of a solid electrolyte. CONSTITUTION:When voltage is applied to the terminal 13 of a

heat generator electrode and a sensor element part 5 is heated by a heat generator 15

and a reference electrode 7a is brought into contact with the atmosphere while a

measuring electrode 7b is brought into contact with gas to be measured, the

electromotive force corresponding to the concn. difference of oxygen gas is generated

between the filling part 5a and laminated parts 5b, 5c in a piercing hole 3. This electric

signal is outputted between the electrodes 7a, 7b and the concn. of the gas is measured

on the basis of said signal. Since a display part 5 is contacted with a substrate only

through the filling part 5a and laminated parts 5b, 5c in the piercing hole 3, the contact

area thereof is small. Therefore, the damage of the element part 5 accompanied by the

difference between the coefficient of thermal expansion of the solid electrolyte of the

element part and that of the alumina of the substrate 1 can be avoided. Since the

element part 5 is made small, the use amount of expensive zirconia can be reduced and

cost reduction becomes possible.

申请人:NGK SPARK PLUG CO LTD

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