Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1985-08-21
1987-01-13
Prescott, A. C.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
338309, 324 711, 324 715, 427 35, 427 82, G01N 2704, H01C 1300
Patent
active
046367675
ABSTRACT:
A method of monitoring gases using electronic conductivity changes in ordd organic semiconductor films comprising an insulated substrate fabricated to an interdigital microelectrode and coated with a vapor sensitive semiconductor film. Variations in current flow caused by vapors interacting with the film are indicative of the vapor type.
REFERENCES:
patent: 2758256 (1952-09-01), Eisler
patent: 3056935 (1962-10-01), Jensen
patent: 4381922 (1983-05-01), Frey et al.
patent: 4539061 (1985-09-01), Sagiv
Barger William R.
Jarvis Neldon L.
Snow Arthur W.
Wohltjen Henry
Beers Robert F.
Hiskes Edward V.
Prescott A. C.
Sheinbein Sol
The United States of America as represented by the Secretary of
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