Patent ID: 9310263
Filing Date: 2016-04-12
CPC Classification: G01K,G01N

Claim Text:
1. An adiabatic scanning calorimeter apparatus comprising: a sample on a sample holder, at least a first heater arranged on the sample or on the sample holder and adapted for heating the sample and the sample holder, at least one thermal or adiabatic shield surrounding the sample or the sample holder, a first temperature sensor arranged on the sample or on the sample holder for measuring a temperature thereof and/or a temperature sensor arranged on said thermal or adiabatic shield for measuring a temperature of the shield; a second heater surrounding the first heater and said thermal or adiabatic shield configured for heating the thermal or adiabatic shield; at least one Peltier element placed between the sample or the sample holder and the shield, and making; good mechanical and thermal contacts with the sample or the sample holder and the shield, configured to be used as a differential thermometer; means for determining the temperature of the sample holder using the first temperature sensor, and for determining a temperature difference between the shield and the sample holder using the Peltier element, and means for powering the first and second heater in such a way that a constant preset temperature difference of a few tenths of a degree Celsius or a zero temperature difference between the sample or the sample holder and the shield is maintained, thereby allowing simultaneous measurements of the temperature dependence of heat capacity and enthalpy of solid or liquid samples and phase transitions therein.