FIELD: measurement technology.
SUBSTANCE: invention relates to the field of optical measurements and relates to a method for measuring the directional coefficient of a infrared material radiation at various temperatures. Method includes placing a sample and a reference radiator in a vacuum heat chamber, it’s heating, discrete rotation and measuring the brightness of it’s infrared radiation using two radiation receivers. Sample and the reference radiator are heated simultaneously by contact and radiation heaters. Radiation heater is taken out of the measurement sector after heating the sample and the reference radiator to the desired temperature. Receivers of radiation are placed at right angles to each other. At the point of intersection of the optical axes, a flow divider is installed. Brightness of the infrared radiation of a sample of a material and a reference radiator is measured simultaneously in the spectral and multispectral representation.
EFFECT: technical result consists in providing greater uniformity of heating the sample and the reference radiator, increasing the accuracy of measurements and increasing the number of simultaneously measured characteristics.
4 cl, 3 dwg
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