| 摘要 |
PROBLEM TO BE SOLVED: To provide a differential scanning calorimeter capable of suppressing heat inflow from a cooling head into a heat resistor between a heat sink and a cooling block, and improving measurement accuracy or cooling efficiency. SOLUTION: This differential scanning calorimeter 1 includes: the heat sink 10 for storing a measuring sample and a reference material; a heater 12 for heating the heat sink; the cooling block 20 positioned under the heat sink separately from the heat sink; the heat resistor 14 connected between the heat sink and the cooling block, for forming a heat channel therebetween; the cooling head 30 having an inner hole 30i fitted to the cooling block detachably, and cooled by an external cooling device; and differential heat flow detectors 3, 5 for outputting a temperature difference between the measuring sample and the reference material as a heat flow difference signal. In the calorimeter 1, a side wall 21pw fitted to the inner hole is formed on the furthermore outside than a connection part 20c with the heat resistor in the cooling block, and the upper surface 30u of the cooling head is arranged so as not to be projected to the furthermore upside than the connection part. COPYRIGHT: (C)2010,JPO&INPIT |
