Apparatus and associated method for reducing an undesired consti

Details Apparatus and associated method for reducing an undesired consti Apparatus and associated method for reducing an undesired consti

1995-07-13

1997-09-16

Phasge, Arun S.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

95 8, 95187, 210916, 205743, C02F 146

Patent

active

056676514

ABSTRACT:
A scrubber apparatus and controller include a gas sensor, and processor for controlling treatment of gas responsive to the sensed undesired constituent so as to enhance reduction of the undesired constituent. The processor further determines a sensor fault and may generate an alarm signal responsive to the sensor fault. The gas sensor is preferably an electrochemical cell comprising an electrolyte and a pair of electrodes associated with the electrolyte. A sensor fault may be determined based upon an impedance of the electrolyte and the pair of electrodes. In addition, the electrochemical cell may include a gas permeable membrane and a pair of electrodes on opposing sides of the membrane to permit determination of damage to the membrane based upon an impedance measurement using the pair of electrodes.

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