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MEASUREMENTS OF PHOTOSYNTHETIC PHOTON FLUX (PPF) AND FLUX DENSITY (PPFD) FOR GREENHOUSE LED IRRADIATORS (PO30, 564-569)

$10.60

Conference Proceeding by Commission Internationale de L'Eclairage, 05/01/2018

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Description

In global agriculture and, in particular, in Russia the tendency of artificial lighting in greenhouses growth is clearly visible. Until recently most of greenhouses used irradiators with high pressure sodium lamps (HPS lamps). The photometric system of units and relevant meters (illuminance meters) were successful used for plants irradiation measurements. The advent of LED luminaires with different light spectra, including those that emit in the visible spectrum border regions (in blue and red bands), necessitated the introduction of PAR (photosynthetically active radiation) system into practice. This paper discusses the issues related to PAR measurements of PAR values such as PPF and PPFD.

Product Details

Published:
05/01/2018
Number of Pages:
6
File Size:
1 file , 1.2 MB