| 摘要 |
FIELD: light engineering, possible use for engineering of equipment, used in medicinal and veterinary practices, in biological research, and also in plant cultivation. ^ SUBSTANCE: device for stabilization of ultraviolet radiation of gas-discharge lamps contains gas-discharge radiation source with inductive ballast, diode bridge, low frequency filter, comparison block, one input of which is connected to supporting voltage block. Additionally proposed device includes photo-detector of ultraviolet radiation, connected through lower frequencies filter to second input of comparison block, output of comparison block being connected to controlling input of transistor adjustment block, connected through ballast resistor to output diagonal of diode bridge, bridging gas-discharge radiation source, while protection block is connected in parallel to transistor adjustment block. ^ EFFECT: prevented influence from changes of voltage of power network and aging of gas-discharge lamps on irradiation intensiveness levels. ^ 1 dwg |
