Device for detecting adsorbed molecules

Details Device for detecting adsorbed molecules Device for detecting adsorbed molecules

1992-04-03

1995-04-11

McMahon, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

250253, 250255, 2504721, 422 88, 422 91, G01N 2760

Patent

active

054055849

ABSTRACT:
A elecret substrate (10), which is exposed to the environment so as to collect molecular contamination, lies at the bottom of a holder (20). Above the substrate a sensor head (100) is supported. Signals from the sensor head are relayed to an electrostatic voltmeter (130). The voltage reading at electrostatic voltmeter (130) is a function of the amount of polar molecule contamination on substrate (10).

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Zita, R. R., "Removal of Adsorbed Gases with CO.sub.2 Snow," in SPIE (Society of Photo-Optical Instrumentation Engineers) vol. 1494, pp. 427-433, Apr. 4, 1991.

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