平面型线圈阵列电涡流传感器阻抗分析

来源期刊：冶金自动化2011年第3期

论文作者：霍守锋 程树森 宋小鹏

文章页码：60 - 64

关键词：数值计算； 阻抗分析； 平面型线圈阵列

Key words：numerical calculation； impedance analysis； planar eddy current probe array

摘    要：炼钢生产过程中,结晶器钢水液位和炉渣厚度的动态测量对生产高质量钢至关重要,采用电涡流传感器测量钢水液位和渣层厚度具有很多优点。对电涡流传感器的阻抗分析是设计电涡流测量系统的基石。本文以炼钢过程中结晶器钢水液面和渣层厚度分布测量为研究对象,采用平面型线圈阵列传感器,通过建立三维电磁场物理模型并用数值计算的方法求解电磁场,从而分析线圈阵列的阻抗特性,并给出相应的结论。

Abstract: In ordor to produce high quality steel,dynamic measurement of liquid steel level and slag thickness for mould is important in steelmaking process.Eddy current method has lots of advantages.Design of eddy current measuring system is based on impedance analysis of eddy current sensor.Taking measurement of liquid steel level and slag thickness distribution in mould as study object,planar probe array is adopted,three-dimensional model of electromagnetic field distribution is established,and electromagnetic field is solved by finite element method.Finally,impedance property of planar eddy current probe array is obtained through analysis,and conclusion is given.