To observe the generation of gas, foaming, decomposition or the like a sample by forming both side walls of a sample cylinder and an outer cylinder from a light transmittable material permitting the internal observation of the sample cylinder from the outside of the outer cylinder.
A reference substance cell 2 and a sample cell 3 are housed in a sample cylinder 4 made of quartz glass and the sample cylinder 4 is surrounded by an outer cylinder 5 made of borosilicate glass. An apparatus main body 6 holds the sample cylinder 4 in the outer cylinder 5 coaxially at a predetermined position and a heater 7 is provided to the sample cylinder 4. An analyzing part 8 measures the temp. difference between a reference substance and a sample by a thermocouple 9 and a cold contact point is compensated by a DTA unit 10 to be amplified and the thermal characteristics of the sample are analyzed by a data processor 11 and the temp. (difference) of the sample is displayed on a temp. display device 12. Since the sample cylinder 4 and the outer cylinder 5 are composed of a light transmittable material as mentioned above, the state change of the sample can be observed or measured directly by an eye or through an optical mechanism.
KAWAI NOBUTAKA
TAKEUCHI HIROKI
KINOSHITA NOBORU
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