Waveguide holder-humidifier

Details Waveguide holder-humidifier Waveguide holder-humidifier

1976-09-20

1977-08-09

Gilliam, Paul R.

Supports: cabinet structure

With gas or vapor treatment of material

23230R, 23232R, 350 96WG, A47B 8100

Patent

active

040406911

ABSTRACT:
This invention is a coated waveguide holder-humdifier which is used to supply moisture in the case of moisture sensitive reactions in order that quantitative results might be obtained with a gradient light analytical detector which will quantitatively measure atmospheric contaminants by comparing changes in light transmission through the coated waveguides before and after exposure. The coated waveguide holder-humidifier comprises a container, a porous material capable of absorbing water and desorbing water vapor mounted within the container, means to hold one or more waveguides within the container, and one or more openings in the container to allow fluid (liquid or gas) sample to contact a waveguide. Also the invention is a method for improving the sensitivity of gaseous reactants on a waveguide where the reaction is moisture sensitive comprising humidifying the environment of said waveguide providing an atmosphere which has a substantially constant humidity normally in the range of 85% to 100% at which said reaction is not appreciably affected by changes in ambient relative humidity.

REFERENCES:
patent: 2477171 (1961-03-01), Gleason
patent: 2630912 (1953-03-01), Warner et al.
patent: 3734691 (1973-05-01), Kukla et al.
patent: 3754867 (1973-08-01), Guenther

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