DEVICE FOR MEASURING SAMPLE ABSORPTION COEFFICIENT Russian patent published in 2019 - IPC G01N21/01 G01N21/25 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment, namely to devices for measuring absorption coefficient of sample, and can be used in investigation of optical characteristics of materials and coatings, including reflecting and absorbing capacity, their dependence on angle of incidence of radiation, irradiation zones, surface texture etc. Device for measuring the absorption coefficient of the sample has a laser radiation source, a division plate, a control radiation receiver and a measuring thermopile with a sample holder and a thermostat. Inside the thermostat there is a fiber-optic channel, on one side brought to a hemispherical mirror cavity, made on the end of the thermostat facing the sample, and on the other side – to a calibration source of radiation.

EFFECT: high accuracy of measurements, including absolute values.

3 cl, 1 dwg