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利用热学性能变化对各类物质进行研究从来就是经典物理化学的主要内容之一。各种物质的热力学参数研究即其一例。过去因装置复杂、操作烦琐,应用不甚广泛。近年来,由于电子技术的采用,热分析法已成为研究工作中经常使用的工具。热分析法原则上应指物质在发生物理或化学变化时热效应的测定。但习惯上也广义地把物质在一定温度程序下所发生的除热效应以外的其他物理或化学参数变化的测定也归之于热分析法之列。G.W.Miller认为,近代热分析法主要系由温度程序控制器,记录器,放大器,和转换器等组成。除转换器外,其他是共同的。而转换器视方法的不同而异。如转换器是热电偶,即为差热分析(DTA);如系天秤,即为热重分析
The use of changes in thermal properties of all kinds of material research has always been one of the main contents of the classical physical chemistry. The thermodynamic parameters of various substances that is one case. In the past due to complex devices, cumbersome operation, the application is not widespread. In recent years, due to the adoption of electronic technology, thermal analysis has become a frequently used tool in research. In principle, the thermal analysis method should refer to the determination of the thermal effect of a substance in the event of a physical or chemical change. However, in a broad sense, the determination of changes in other physical or chemical parameters other than heat removal that occur under a certain temperature program is also broadly defined by the thermal analysis method. G.W. Miller that modern thermal analysis mainly by the temperature program controller, recorder, amplifier, and converter components. Other than the converter, the others are common. The converter varies depending on the method. If the converter is a thermocouple, which is differential thermal analysis (DTA); such as scales, that is, thermal gravimetric analysis