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前言 差热分析是热分析的一种,它研究物质在加热时所产生的热效应的性质、温度、以及其它特征。其原理是利用一对温差热电偶测量参考物和样品之间的温度差,(见图1),将此温度差随时间(或温度)变化的曲线记录下来,即差热曲线。此方法目前广泛应用于地质、陶瓷、冶金、石油化工等各方面的研究。 CFS—Ⅰ型差热分析仪是按1952年我国第一次设计资料,由丹东精密仪器厂制造。其炉子为卧式,温差热电偶直接与样品接触,照相记录。此仪器在性能上有不少缺点。在调试过程中发现光点紊乱,基线每次都跑出相纸外面,不能正常工作。
Differential thermal analysis is a form of thermal analysis that examines the nature, temperature, and other characteristics of the thermal effects that matter produces when heated. The principle is to use a pair of thermocouple temperature measurement reference and sample temperature difference, (see Figure 1), the temperature difference with time (or temperature) curve is recorded, the differential thermal curve. This method is currently widely used in geology, ceramics, metallurgy, petrochemical and other aspects of research. CFS-Ⅰ differential thermal analyzer is based on the first design data in China in 1952, manufactured by Dandong Precision Instrument Factory. The stove is horizontal, thermocouple temperature and sample contact, photographic records. This instrument has many disadvantages in performance. Found in the debugging process spot disorder, the baseline ran out of the paper each time, can not work properly.