Electronic nerve agent detector

Details Electronic nerve agent detector Electronic nerve agent detector

1983-09-19

1985-10-29

Lacey, David L.

Measuring and testing

Gas analysis

Gas chromatography

422 88, 436104, G01N 3106

Patent

active

045494274

ABSTRACT:
A personal field chemical warfare nerve agent detector has therein a transducer having two micromechanical cantilever oscillators. One of the cantilever oscillators has deposited, as an end-mass, a chemically selective substance on the cantilever. The nerve agent if present causes the natural resonant frequency to change. The changed resonant frequency is compared to a reference resonant frequency of the other cantilever oscillator without an end-mass. The amount of frequency change indicates the presence of a chemical nerve agent.

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Janata et al., Field-Effect Transistors to Detect Chemical Warfare Agents in Aircraft, USAF, SAM-TR-80-25, Aug. 1980.
Janati et al., Chemically Sensitive FET to Detect Organophosphorous Compounds and Pesticides, Aviation, Space, and Env. Medicine, Nov. 1981.

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