FIELD: biochemistry, botanics, electronics.
SUBSTANCE: invention relates to the field of studying the properties of plant objects and relates to a system for measuring the photochemical reflection index (PRI) in plants. The system contains housing with a viewing window, LED illuminators mounted on the housing with the possibility of rotation. Each LED illuminator is made in the form of a plate on which a group of series-connected yellow-green LEDs is installed. Inside the case there are two frameless monochrome pixel cameras, a band-pass interference filter with a bandwidth at 567.5-582.5 nm, a band-pass interference filter with a pass band at 524.5-535.5 nm, a dividing plate, a control board, a USB hub with USB connector, LED current source. Additionally, the system contains a power supply unit and a personal computer.
EFFECT: reduced measurement time, increased sensitivity and accuracy of measurements.
15 cl, 6 dwg
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