Main Title |
Model YMT-6 UV-B modulation system. : Manual of operation / |
Author |
Sullivan, J. H. ;
Yu, Z. ;
Teramura, A. H.
|
Other Authors |
|
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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-216432 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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. |
Notes |
"September 1989." Microfiche. |
Contents Notes |
EPA/600/8-91/048. |
Place Published |
Corvallis, OR : |
Supplementary Notes |
Sponsored by Corvallis Environmental Research Lab., OR. |
Corporate Au Added Ent |
United States. Environmental Protection Agency. ; Environmental Research Laboratory (U.S.) ; University of Maryland. Agricultural Experiment Station. |
PUB Date Free Form |
{1989} |
NTIS Prices |
PC A04/MF A01 |
BIB Level |
m |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20010123165127 |
Language |
eng |
Origin |
NTIS |
Type |
MERGE |
OCLC Rec Leader |
01070nam 2200277Ka 45020 |