Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For oxygen or oxygen containing compound
Reexamination Certificate
2005-07-12
2005-07-12
Olsen, Kaj K. (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For oxygen or oxygen containing compound
C204S406000, C204S424000, C219S497000
Reexamination Certificate
active
06916415
ABSTRACT:
A method and device for driving a gas sensor includes a three-point circuit determining a temperature of a gas sensor having a resistive heating element by determining a measuring current with a measuring resistor flowing through the resistor in a measuring phase. The three-point measurement makes it possible to determine accurately the line resistance of an incoming line branch, which can also be used approximately for the line resistance of another incoming line branch. Naturally, the tap may also be provided on the incoming line side.
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Greenberg Laurence A.
Locher Ralph E.
Olsen Kaj K.
Siemens Aktiengesellschaft
Stemer Werner H.
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