WANG Zhichun, LU Junwei. Optimization of remote field eddy current sensor of continuous casting shell thickness measurement[J]. 2020, (8): 68-71. DOI: 10.13873/J.1000-9787(2020)08-0068-04.
连铸坯壳厚度测量远场涡流传感器优化仿真分析
摘要
根据连铸钢坯内部不同温度区的金属电磁特性的不同
建立被测对象的仿真模型。针对连铸坯壳厚度检测的要求
进行了远场涡流检测技术的研究
设计了带屏蔽结构的远场涡流传感器
在铸坯这种结构中产生了远场现象。对传感器的线圈直径、线圈匝数和屏蔽结构3个方面进行分析
研究其对检测结果的影响
给出了坯壳厚度测量远场涡流传感器的优化参数。
Abstract
According to the different electromagnetic characteristics of metals in different temperature regions of continuous casting steel billet
the simulation model of the tested object is established. According to the requirement of thickness measurement of continuous casting billet shell
the remote field eddy current testing technology is studied. The remote field eddy current sensor with shielded structure is designed
and the remote field phenomenon is produced in the billet structure. The coil diameter
coil turn number and shielding structure of the sensor are analyzed
and the influence on the detection result is studied
and the optimum parameters of the remote field eddy current sensor for measuring the thickness of the shell are given.