Patent ID: 7455449

Claim:
A differential scanning calorimeter comprising: an accommodation chamber accommodating therein a sample to be measured and a reference material; a heater attached so as to surround a periphery of the accommodation chamber to thereby heat the accommodation chamber; a differential heat flow detector which is provided in the accommodation chamber, detects a temperature difference between the sample to be measured and the reference material, and outputs the temperature difference having been detected as a heat flow difference signal; a cooling block which is disposed below the accommodation chamber while being separated by a constant distance, and cooling-controlled to a predetermined temperature; a heat resistor, for controlling heat transfer, which is formed so as to have a predetermined heat resistance, interposed between the cooling block and the accommodation chamber to thereby mechanically connect both, and forms a heat flow path between the cooling block and the accommodation chamber; a support means supporting the cooling block; and a fixation means of at least any one between a first fixation means which fixes the heat resistor to the cooling block by pressing the former while being biased by a constant elastic force, and a second fixation means which fixes the accommodation chamber to the heat resistor by pressing the former while being biased by a constant elastic force.