Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1985-07-22
1986-12-09
Levy, Stewart J.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
250504R, G01W 100
Patent
active
046272844
ABSTRACT:
An ultraviolet absorption hygrometer is provided including a source of pulsed ultraviolet radiation for providing radiation in a first wavelength region where water absorbs significantly and in a second proximate wavelength region where water absorbs weakly. Ultraviolet radiation in the first and second regions which has been transmitted through a sample path of atmosphere is detected. The intensity of the radiation transmitted in each of the first and second regions is compared and from this comparison the amount of water in the sample path is determined.
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Tilman; Water Vapor Density Measurements Utilizing the Absorption of Vacuum Ultraviolet and Infrared Radiation.
Bernstein Lawrence S.
Bien Fritz
Gersh Michael E.
Iandiorio Joseph S.
Levy Stewart J.
Noonan William E.
Spectral Sciences Inc.
Williams Hezron E.
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