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Ultraviolet Source For Testing Hydrogen-Fire DetectorsHand-held portable unit emits ultraviolet light similar to that emitted by hydrogen burning in air. Developed for use in testing optoelectronic hydrogen-fire detectors, which respond to ultraviolet light at wavelengths from 180 to 240 nanometers. Wavelength range unique in that within it, hydrogen fires emit small but detectable amounts of radiation, light from incandescent lamps and Sun almost completely absent, and air sufficiently transmissive to enable detection of hydrogen fire from distance. Consequently, this spectral region favorable for detecting hydrogen fires while minimizing false alarms.
Document ID
19950065549
Document Type
Other - NASA Tech Brief
Authors
Hall, Gregory A.
(NASA John F. Kennedy Space Center, Cocoa Beach, FL.)
Larson, William E.
(NASA John F. Kennedy Space Center, Cocoa Beach, FL.)
Youngquist, Robert C.
(I-NET)
Moerk, John S.
(I-NET)
Haskell, William D.
(I-NET)
Cox, Robert B.
(I-NET)
Polk, Jimmy D.
(I-NET)
Stout, Stephen J.
(I-NET)
Strobel, James P.
(I-NET)
Date Acquired
August 17, 2013
Publication Date
August 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 8
ISSN: 0145-319X
Subject Category
Physical Sciences
Report/Patent Number
KSC-11685
Accession Number
95B10390
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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