Measuring and testing – Gas analysis – By vibration
Patent
1986-11-17
1988-04-05
Buczinski, Stephen C.
Measuring and testing
Gas analysis
By vibration
G01N 3100
Patent
active
H00004545
ABSTRACT:
A method of detecting leaks within artillery shells, bombs and other munitions is disclosed which involves the permanent in situ insertion within the munition cavity of an electrically resistive surface which varies in resistance with the adsorption thereon of leaking chemical vapors. In a typical embodiment of the invention, the electrically resistive surface is serially connected with an identical surface with an inert coating and the voltage drops across both the coated and uncoated surfaces are measured. Thereby, any changes in the resistance of the exposed surface due to factors other than adsorption thereon of leaking gases, e.g., temperature changes, are appropriately offset.
REFERENCES:
patent: 3979625 (1976-09-01), Roberts
patent: 4011538 (1977-03-01), Froemel
patent: 4369647 (1983-01-01), Shigemori et al.
patent: 4410632 (1983-10-01), Dilley et al.
Wohltjen, N. L., et al., Chemical Microsensors for Chemical Vapor Detecti in Proc. Int. Symp. Protection Against Chemical Warfare Agents, Stockholm, Swe., Jun. 6-19, 1983, pp. 51 and 56-59.
Marcou Richard P.
Sickenberger David W.
Buczinski Stephen C.
Card, Jr. Harold H.
Lane Anthony T.
Sachs Michael C.
The United States of America as represented by the Secretary of
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