Development of Light Heating Dynamic DSC

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In this research we investigated the second light heating dynamic DSC on the basis of experiences of construction of the first apparatus. The most important feature of the second apparatus is the light heating system separated from the furnace of the DSC.Optical fibers were used to connect the light heating system with the furnace. This structure leads to various merits. Firstly fitting of light incidence became much easier than the first apparatus because of the flexible optical fibers. Secondly sample operation became easier because the light incidence system can be removed from the top of the furnace. Thirdly incidence conditions to the sample and reference sides can be controlled independently from each other. This allows various new methods of measuring. Fourthly the light heating system to add the ability of TMDSC to the conventional DSC can easily be fitted to DSC apparantuses of various companies. This means that the light heating system may be commercially provided. The second apparatus has another improvement. TMDSC signals are extracted directly from the electric circuit in the DSC apparatus by modifying the electric circuit. Signal with better signal to noise ratio can be obtained. Software of data collection and data analysis has not been accomplished. However, we confirmed that the data collection system was working well using a test program. Consequently essential problems of construction of the light heating dynamic DSC has been solved in this research.