一、前言程序升温是科研和生产中经常遇到的一类控制,它需要对升、降温速率和保温时间进行严格控制。目前国内常用的以碳膜纸画出设定曲线,采用位置跟踪的方式实现程序设定的方法,虽较动圈仪表进了一步,但它必须根据仪表走低速度精心设计曲线形状,工作量大。随着微型计算机在工业生产过程中的广泛应用,国内也有采用产品化的微型 First, the preamble Program heating is often encountered in scientific research and production of a class of control, it needs to rise, the cooling rate and holding time strictly controlled. Currently used to draw the carbon paper set curve, the use of position tracking method to achieve the program set method, although the dynamic instrument than a step, but it must be based on the meter lower speed carefully designed curve shape, heavy workload . With the widespread use of microcomputers in the industrial process, there are also domestically produced miniature