Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For oxygen or oxygen containing compound
Patent
1995-12-26
1999-10-26
Tung, T.
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For oxygen or oxygen containing compound
204424, 204425, 204426, 204427, G01N 27407
Patent
active
059722002
ABSTRACT:
A wide range air to fuel (A/F) ratio sensor having a solid electrolyte plate, a measurement electrode and a first pumping electrode both formed at one surface of the solid electrolyte plate, the measurement electrode serving as both an oxygen pumping electrode and a sensing electrode, and a second pumping electrode and a sensing reference electrode both formed at another surface of the solid electrolyte plate, the sensing reference electrode being supplied with oxygen from the first pumping electrode and thereby serving as an oxygen reference electrode. The wide range A/F ratio sensor can be driven by a reference voltage variation method which adds a surplus voltage to a reference voltage.
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Solid State Ionics 86-88 (1996) month available 1079-1085, B. Kim, J. Lee and H. Kim; Samsung Advanced Institute of Technology.
Tessho Yamada, Universal Air-Fuel Ratio Heated Exhause Gas Oxygen Sensor And Further Applications, No. 920234, pp. 23-36. date unavailable.
Samsung Electro-Mechanics Co. Ltd.
Tung T.
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