A technique in which an electrical characteristic of a substance (and/or its reaction product(s)) is measured as a function of temperature whilst the substance is subjected to a controlled temperature program. The most common measurements are of resistance, conductance or capacitance.
Source:
PAC, 1985, 57, 1737. 'Nomenclature for thermal analysis - IV (Recommendations 1985)' on page 1740 (https://doi.org/10.1351/pac198557111737)