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一、生严过程自动化与仪表任何生产过程都有一个“物质流程”和一个“信息流程”。物质流程是从原料经过运送、加工到半成品或成品所组织起来的过程。信息流程则是另外一种性质的过程,这是通过操作管理者对生产过程情况进行观察、测定,将获得的信息经过分析判断后,对生产过程作出相应的控制的信息过程。自动化仪表就是实现生产过程自动化所需要的各种信息工具。过去我们曾称它为“热工仪表”,现在称它为“工业自动化仪表”,但是按照国际电工委员会(IEC)的命名,确切的说,可称它为“过程检测控制仪表”。
First, the strict process automation and instrumentation in any production process has a “material process” and an “information process.” Material flow from the raw material through the delivery, processing to semi-finished or finished product organized by the process. Information process is another kind of process, which is through the operation of managers to observe the production process, measurement, the information obtained through analysis and judgment, the production process to make the appropriate control of the information process. Automation Instrumentation is the information tool needed to automate the production process. In the past we used to call it “thermal instrumentation,” which we now call “industrial automation instrumentation,” but according to the International Electrotechnical Commission (IEC) designation, to be precise, it can be called “process control instrumentation.”