DEVICE OF STANDARDLESS DIFFERENTIAL THERMAL ANALYSIS WITH CONTROLLED DIFFERENTIAL RECORDING IN SETTINGS

摘要

FIELD: chemistry; physics.;SUBSTANCE: invention relates to physical and chemical analysis and can be used in phase and chemical analysis in various fields of science and technology: geology, metallurgy, medicine, food industry, etc. A device for differential thermal analysis is proposed comprising a heating furnace, a heating mode control unit with a control thermocouple, a thermocouple measuring thermocouple, block for setting the furnace heating mode, furnace heating amplifier, differentiation unit, summation unit, subtraction unit and recorder. Moreover, the device is additionally provided with elements for external control of the gain factors of incoming signals: a derivative of the derived signal with a tuning regulator and an amplifier of a control signal with a tuning regulator.;EFFECT: increase the information content of the DTA curve by increasing its sensitivity when registering small thermal effects.;1 cl, 1 dwg