Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1981-12-31
1984-05-22
Albritton, C. L.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
73 27R, 422 98, H01L 700
Patent
active
044504284
ABSTRACT:
A compact and high sensitive gas detecting sensor for detecting the partial pressure of oxygen gas in the exhaust gases of an internal combustion engine is disclosed. The sensor is provided with a sensing element made of the ceramic material having an electrical characteristic which varies in response to variations in the partial pressure of oxygen gas, such as CoO, a base member made of ceramic material having a characteristic of generating heat when an electric current is supplied thereto, such as silicon carbide. The sensing element is integrally fixed to the base member through an insulating layer made of ceramic material. To the base member, electrodes are connected for supplying an electric current thereto so that the base member is maintained at a predetermined temperature regardless of the temperature change of the exhaust gases.
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patent: 4007435 (1977-02-01), Tien
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patent: 4320378 (1982-03-01), Taniguchi et al.
patent: 4338281 (1982-07-01), Treitinger et al.
Hattori Yutaka
Kawakami Tomio
Ohta Minoru
Onoda Michitosi
Albritton C. L.
Nippon Soken Inc.
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