Document Detail

Irradiance and spectral distribution control system for controlled environment chambers.
MedLine Citation:
PMID:  11538252     Owner:  NASA     Status:  MEDLINE    
This paper describes a closed-loop control system for controlling the irradiance and spectral quality generated by fluorescent lamps in a controlled environment chamber. The 400 to 800 nm irradiance and the ratio of the red waveband (600 to 700 nm) to the far-red waveband (700 to 800 nm) were independently controlled and varied as functions of time. A suggested application is to investigate the possibility of synergistic effects of changing irradiance levels and changing spectral distributions on photoperiodism and photomorphogenesis.
M J Krones; J C Sager; A T Johnson
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  HortScience : a publication of the American Society for Horticultural Science     Volume:  22     ISSN:  0018-5345     ISO Abbreviation:  HortScience     Publication Date:  1987 Jun 
Date Detail:
Created Date:  1995-12-11     Completed Date:  1995-12-11     Revised Date:  2001-09-04    
Medline Journal Info:
Nlm Unique ID:  9882989     Medline TA:  HortScience     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  501-3     Citation Subset:  S    
Smithsonian Environmental Research Center, Rockville, MD 20852, USA.
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MeSH Terms
Computer Systems*
Environment, Controlled
Equipment Design
Life Support Systems / instrumentation
Spectrum Analysis*
W M Knott / KSC

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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