Chemistry: analytical and immunological testing – Oxygen containing – Molecular oxygen
Patent
1989-05-08
1991-08-06
Warden, Robert J.
Chemistry: analytical and immunological testing
Oxygen containing
Molecular oxygen
436143, 436149, 436151, 436155, 422 94, 422 95, 422 98, 204408, 204425, 20415318, 338 34, G01N 2500
Patent
active
050377612
ABSTRACT:
An industrial process oxygen analyzer, and method of using same, incorporates an automotive oxygen sensor to minimize the criticalness of controlling heater temperature during operation. Higher sensor heater temperature, required to accommodate the automotive oxygen sensor, is achieved by application of higher supply voltage to the sensor heater. Current limiting of the heater supply circuit reduces stress on the sensor heater, even at the higher operating temperature.
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Barnett Daniel C.
Fry John J.
Hall, II George R.
Ross David F.
Smith Robert A.
Collins Laura E.
Edwards Robert J.
Elsag International B.V.
Kalka Daniel S.
Matas Vytas R.
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