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Title: Ultraviolet absorption hygrometer

Patent ·
OSTI ID:866075

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.

Research Organization:
Spectral Sciences Inc
DOE Contract Number:
AC02-84ER80142
Assignee:
Spectral Sciences, Inc. (Burlington, MA)
Patent Number(s):
US 4627284
OSTI ID:
866075
Country of Publication:
United States
Language:
English