| 摘要 |
PROBLEM TO BE SOLVED: To perform highly accurately a flow measurement or composition analysis of gas generated from a sample simultaneously with a thermal analysis of thermal gravity and differential heat or the like. SOLUTION: This thermal analysis device has a constitution wherein a material generating a phase change from a liquid at a room temperature to gas at a high temperature at which the thermal analysis is performed is circulated in a sample chamber 104, and a non-condensable gas is circulated through components connected to other measuring instruments, to thereby prevent condensation of the phase-changing material, and exhaust gas passing a sample plate 101 or the like is prevented from being mixed with the non-condensable gas. Hereby, the thermal analysis is performed, while maintaining thermal analysis accuracy similar to hitherto, and since the gas generated from a sample gas can be collected in high concentration, the flow measurement or the composition analysis of the generated gas can be performed highly accurately. COPYRIGHT: (C)2005,JPO&NCIPI
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