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自七十年代初微型计算机问世(1971年,Intel公司引入第一台微处理机-4004)以来,微型计算机的应用成果可说是“繁花似锦,百花争艳”.鉴于以大规模集成电路为基础的微型计算机具有价格低廉、可靠性高、体积小、功能强和灵活性大等优点,在石油化工生产管理和过程控制中的应用日见普及.根据1978年的情报,微型计算机已用作色谱控制器和峰值积分计算器,控制四台以上的色谱仪;用作多回路过程控制器,控制多达8个的控制回路,提供代替直接数控(DDC)过程控制机的先进控制模型;用作
Since the early 1970s, the advent of microcomputers (Intel Corporation introduced the first microprocessor in 1971 - 4004), the results of the application of microcomputers can be described as "Given the large-scale Microcomputer based on integrated circuit has the advantages of low cost, high reliability, small size, strong function and great flexibility, and is widely used in petrochemical production management and process control.According to the information of 1978, the microcomputer Used as a chromatographic controller and peak integral calculator to control more than four chromatographs; used as a multi-loop process controller to control up to eight control loops and provides advanced control as a substitute for direct numerical control (DDC) process controllers Model