差热天平是一种DTA和TG联用的热分析仪,可同时获得DTA曲线和TG曲线。由于两种信息是在同一样品上同时获得,因此不仅升温速率、气氛、试样粒度和重量等各种条件完全相同,而且两者测定是完全同步进行的,便于实验结果的互相补充和验证。故一般研究工作中差热天平采用较多,过去此类仪器都靠进口,1979年北京光学仪器厂首先试制成功LCT—1型微量差热天平,填补了国内空白,仪器各项指标 Differential thermometer is a DTA and TG thermal analyzer can be obtained at the same time DTA curve and TG curve. Since both information are obtained simultaneously on the same sample, not only the heating rate, the atmosphere, the particle size and the weight of the sample are exactly the same, but also the measurement of both is completely synchronized to facilitate the mutual supplement and verification of the experimental results. Therefore, the general research work using more thermometers, in the past such instruments are imported, in 1979, Beijing Optical Instrument Factory successfully trial LCT-1-type micro-differential thermal balance, to fill the gap, the instrument of the indicators