Spectroradiometer for measuring photosynthetic photon flux density

摘要

The utility model relates to the field of agriculture and concerns a spectroradiometer for measuring the photon flux density of photosynthesis. The spectroradiometer contains a diffraction grating polychromator with registration of the decomposed radiation with a photodiode ruler, a lens with a cosine correction and an input slit of constant width. The output polychrometer is connected to the multiplier and the outputs of the polychromator and the multiplier are connected to the adders whose outputs are connected to the input of the display unit whose second input is connected to the switching unit of the displayed quantity. In addition, the outputs of the polychromator and the adders are connected to the communication unit with the computer. The technical result is to provide the possibility of assessing the quality of irradiation in conditions of light culture by the magnitude of the flux of photons participating in photosynthesis without usingexperimental tables of plant reactions. 3 z.p. f-ly, 2 ill.