Gas sensor probe tip with integrating filter

Details Gas sensor probe tip with integrating filter Gas sensor probe tip with integrating filter

1992-01-24

1994-12-06

Regan, Maura K.

Electricity: measuring and testing

Using ionization effects

For analysis of gas, vapor, or particles of matter

324455, 73 3102, G01N 2760, G01N 3100

Patent

active

053714679

ABSTRACT:
An improved corona discharge detection probe, including a corona discharge gas detector, the detector including electronic circuitry, a cathode electrode, an anode electrode spaced from the cathode electrode, and a mechanism for constraining through the probe the flow of atmospheric air to be sensed. The probe has a tip for initially receiving the flow of atmospheric air to be sensed. An external chamber is included, the external chamber being securable to the tip of the detector probe. An adsorbent material is placed within the external chamber about the detector probe such that ambient atmosphere first flows through the chamber prior to encountering the probe tip. The adsorbent material acts to adsorb water vapor in a controlled manner, such that changes in the water vapor level do not affect the detection probe circuitry and thereby eliminates false alarms.

REFERENCES:
patent: 3569825 (1971-03-01), Lilienfeld
patent: 3970567 (1976-07-01), Lowther
patent: 4609875 (1986-09-01), Jeffers

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