The device is designed to measure the pulsation coefficient of radiation sources, brightness of extended self-luminous objects by overhead method and illumination in the visible spectrum (380 ÷ 760) nm, with data output to a PC (via USB).The device has automatic range change, HOLD function, reduced power consumption. The device has a unique possibility to determine illuminance values in real time mode and to calculate exact values of illuminance pulsation coefficient using a special programme protected by the Certificate of official registration of the computer programme No.2003612397. The integral method of calculation of average illuminance value for calculation of illuminance pulsation coefficient is realised in the device.
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