Record Display for the EPA National Library Catalog
RECORD NUMBER: 1 OF 1Main Title | Model YMT-6 UV-B modulation system. : Manual of operation / | |||||||||||
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Author | Sullivan, J. H. ; Yu, Z. ; Teramura, A. H. | |||||||||||
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CORP Author | Maryland Univ., College Park.;Corvallis Environmental Research Lab., OR. | |||||||||||
Publisher | U.S. Environmental Protection Agency, Environmental Research Laboratory, | |||||||||||
Year Published | 1991 | |||||||||||
Report Number | EPA/600/8-91/048 | |||||||||||
Stock Number | PB91-216432 | |||||||||||
Additional Subjects | Solar ultraviolet radiation ; Radiation monitors ; Near ultraviolet radiation ; Ultraviolet detectors ; Modulation ; Maintenance ; Operation ; Irradiation ; Instruction manuals ; Design ; Graphs(Charts) ; YMT-6 system ; Ozone depletion | |||||||||||
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Collation | 119 pages ; 28 cm | |||||||||||
Abstract | The YMT-6 Ultraviolet Irradiation Modulation System (YMT-6 UIMS) is designed to monitor solar UV-B radiation and deliver output of a bank of fluorescent sunlamps. The system uses a significant advance in technical approach which has not been previously used. The system employs a new detection/feedback system, using a true condition closed-loop feedback control system, which employs two detectors. The true-condition feedback system continuously monitors natural solar UV-B fluences and those fluences present at some point beneath a lamp bank (solar plus supplemental UV-B). The system then maintains a constant proportional supplement of UV-B beneath the lamp racks. Therefore, the YMT-UIMS will provide a realistic UV-B supplementation, which would be anticipated with a given ozone depletion, over a wide range of environmental conditions. |
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Notes | "September 1989." Microfiche. |
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Contents Notes | EPA/600/8-91/048. |