Record Display for the EPA National Library Catalog
RECORD NUMBER: 491 OF 852
|OLS Field Name||OLS Field Data|
|Main Title||Model YMT-6 UV-B modulation system. : Manual of operation /|
|Author||Sullivan, J. H. ; Yu, Z. ; Teramura, A. H.|
|CORP Author||Maryland Univ., College Park.;Corvallis Environmental Research Lab., OR.|
|Publisher||U.S. Environmental Protection Agency, Environmental Research Laboratory,|
|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|
|Collation||119 pages ; 28 cm|
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.
"September 1989." Microfiche.