Conventional calorimetry has always the difficulty of choosing between near to equilibrium working conditions and high thermal
ramp rates. Thus, either the transport phenomena and sample homogeneities are good but the signals become weak due to thermal
losses, or the signals are sharp, but strong gradients across the sample lead to chemical and thermal heterogeneities. The
described pulsed fluidized bed technique, by strongly stirring the sample, allows good sample homogeneities even at high ramp
rates. Moreover, the permanently regenerated cover gas allows as well a good heat transfer towards the thermocouples as a
constant atmosphere composition leading to very precise onset temperatures.