智能化小型化差热分析仪的研制

Development on Miniature Intelligent Differential Thermal Analysis Instrument

摘要: 新研制成功的差热分析仪采用上位ＰＣ系列微机与下位多单片机的分布式控制结构。下位温控卡和信号采集卡与上位机通过ＲＳ－２３２Ｃ接口进行通信。上位机采用Ｗｉｎｄｏｗｓ９５操作环境和ＶＢ４．０编程语言，可以对下位机进行参数设定和控制，对炉温信号，样品温度信号，差热信号进行实时显示和多种量程曲线描绘，放大、平移以及数据存储，并附有功能丰富的数据处理软件包。

Abstract: A recent DTA instrument was introduced in this paper. The instrument is a distributed multiembeded processor and PC system. The PC communicates with the processors via RS 232. The PC is based on Windows 95 and VB4.0. Their work is to control the operation of the processors and to obtain the temperature and DTA data from the processors to plot data curvers on CRT, and to do variety of processing and calculation.