Controlled sensitivity monitoring devices

Details Controlled sensitivity monitoring devices Controlled sensitivity monitoring devices

1978-06-09

1979-06-26

Swisher, S. Clement

Measuring and testing

Gas analysis

Gas chromatography

422 88, G01N 3100

Patent

active

041589580

ABSTRACT:
A controlled sensitivity device for measuring the amount of a selected component in fluid mixture is disclosed. A collecting layer is disposed within a chamber into which the fluid mixture is allowed to diffuse. Sensitivity of the device is controlled by varying the ratio of the chamber entrance area to the frontal surface area of the collecting layer and the shape of the chamber to cause divergence of convergence of molecules within the chamber.

REFERENCES:
patent: 3950980 (1976-04-01), Braun
patent: 3985017 (1976-10-01), Goldsmith

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