基于单片机的结晶器钢水液位检测系统设计  

Molten steel liquid level detection system based on MCU

作　　者：周洋[1] 王景存[1] 黄亮[1] 

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081

出　　处：《电子设计工程》2013年第10期158-160,共3页Electronic Design Engineering

摘　　要：为保证钢水连铸中结晶器内液位稳定，提出了一种基于单片机的钢水液位检测系统方案。该系统通过滤波、放大、线性化等一系列处理，将由涡流型传感器采集的微弱信号变为0~5 V电压信号。经过DA变换得到4~20 mA电流信号供PLC使用。系统的测量精度为±2 mm、量程为0~150 mm。本系统成本较低，实用性较强，已经在实际生产中投入使用，并取得良好的效果。In order to stabilize the liquid steel level in the molten of the continuous casting, the design of molten steel liquid level detection system based on MCU is designed in this paper. Though filtering, amplification, linearization and a series of processing, a weak signal collected by the eddy current sensor change into 0~5 V voltage signal. Processing DA transfer, PLC obtains 4~20mA current signal. The measure precision of the system is ±2mm,and the range reaches 0 ~150mm. Because of low in cost, and super in practicality, this system has been put into practical use and run well.

关 键 词：连铸 结晶器 液位检测 涡流法 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]