Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1975-07-23
1977-01-04
Wolk, Morris O.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
23254E, 73 27R, 204195S, 324 71SN, 338325, 338328, 357 25, H01L 3100, GO1N 3100
Patent
active
040017567
ABSTRACT:
Measuring cell for determining oxygen concentrations in a gas mixture, which cell comprises two elements made of a semiconductive oxidic material which is doped so as to have n-type and p-type conductivity respectively and which are separated by a metal layer, the electric resistance of the said semiconductive oxide depending upon the oxygen pressure. The cell is used for carburation control in an internal combustion engine.
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Steinhauser Carl P.
Trifari Frank R.
Turk Arnold
U.S. Philips Corporation
Wolk Morris O.
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