Characteristic and applicability of a temperature-modulated differential scanning calorimeter for steady state measurement of heat capacity

Temperature-modulated calorimetry, in which an apparatus for temperature-mo dulated differential scanning calorimetry (DSC) is employed, has a variety of advantages in heat capacity measurement. Namely, the absolute value of h eat capacity can be obtained easily, by using periodic signal we can exclud e the effects of external noises and drifts, the frequency dependence of he at capacity can be measured, etc. However, it is quite different from diffe rential scanning calorimetry when we consider the principle of its performa nce, although the apparatus developed for DSC is generally used for tempera ture-modulated calorimetry as well. Tn this paper, the difference between t hem is clarified and based upon it the possibility of the application is di scussed. (C) 2000 Elsevier Science B.V. All rights reserved.