热重分析法是一种应用较普遍的分析方法。我们针对扭力天平的特点,作了一些改装,将其反映重量变化的角位移,转换成电讯号输出,进行自动记录,成为一种简易的全自动记录热重分析仪。经较长时间使用表明,仪器运行可靠,精度也合乎一般热重分析要求。现将它的结构和使用方法说明如下:一、扭力天平简介:扭力天平是借螺旋弹簧扭力来控制重量平衡的一种装置,其转动角度与所平衡的重量之间呈线性关系。从图1可看出,当平衡物重量 Thermogravimetric analysis is a commonly used analytical method. For the characteristics of the torsion balance, we made some modifications to convert the angular displacement, which reflects the weight change, into an electrical signal output and record it automatically, making it a simple and fully automatic thermogravimetry analyzer. After a long time use shows that the instrument is reliable, the accuracy is also in line with the general thermal gravimetric analysis requirements. Now its structure and the use of methods are described below: First, the torque balance Description: The torsion balance by the torsion of the coil spring to control the weight balance of a device, the angle of rotation and the balance of the weight of a linear relationship between. It can be seen from Figure 1, when the weight balance