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在防爆级别高、强腐蚀介质等工业情况下,要想实现自动物料配比、使生产连续自动化,必须使用特殊的流量计检测物料的流量(如超声波流量计),工程投入较大。综合性能价格比,选用价格昂贵的流量计并不是最优方案,在具有称重设备的自动配比控制系统中,利用带Profibus-DP通讯口的称重设备,通过软件程序设计,将重量信号转化为流量信号,来代替流量计检测流量,实现连续的自动配比控制,这一控制方案在现代先进的自动化连续生产中,应用前景十分广泛。
In the high explosion-proof level, strong corrosive media and other industrial circumstances, in order to achieve automatic material ratio, the production of continuous automation, you must use a special flow meter to detect material flow (such as ultrasonic flow meter), the project into a larger. Comprehensive cost performance, the use of expensive flow meter is not the optimal solution, with a weighing device in the automatic ratio control system, the use of Profibus-DP communication interface with a weighing device, through the software programming, the weight signal Into flow signals, instead of the flow meter to detect traffic, to achieve continuous automatic ratio control, the control program in the modern advanced automated continuous production, the application of a very wide range of prospects.