Abstract
The article proposes a method for determining the thermophysical characteristics, which consists in measuring the temperature of two points of the sample surface, subjected to pulsed thermal action from microwave radiation of a given power focused into a line. The number of pulses and the repetition rate are adaptively set by the system when the established excess temperature at the control point is equal to the set value. To implement the proposed method, a microprocessor information-measuring system is presented. The accuracy of the proposed method is increased due to the control of high-level values of temperatures, the removal of information in the frequency-pulse form, and the heating of a large volume of the material under study. Metrological analysis and experimental studies of the proposed method have shown sufficient accuracy for thermophysical measurements, which will allow it to be applied in various fields of industry and construction heat engineering.
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