Principle : The Differential Thermal Analysis (DTA) is a technique in thermal analysis is very popular to measure the transitions endothermic and exothermic depending on the temperature. this technique allows you to save, as a function of time or temperature, the temperature difference between the sample and a reference medium, when they are placed in an enclosure subjected to a temperature program determined. it is generally more rich in information than thermal analysis simple due to mounting differential thermocouples which gives necessarily greater sensitivity.
according to din 51 007, the Differential Thermal Analysis (DTA) is suitable for the determination of the temperature characteristics, while the differential scanning calorimetry (dsc) allows the determination of the calorific values, such as the heat of fusion or heat of crystallization.