摘要
为了实现有限空间内金属飞行体的更远距离探测,提出了利用大半径涡流传感器的测量方案。基于毕奥-萨伐尔定律,建立了大半径涡流传感器探头线圈的数学模型。从优化线圈几何参数出发,利用控制变量法,在MATLAB中分析线圈不同外半径、内半径、厚度对传感器测量范围的影响,并在Ansoft Maxwell中进行仿真验证。结果表明:用于远距离检测时,线圈外半径越大,轴向磁感应强度越大、灵敏度越高、测量范围较大;探头线圈的内半径、厚度变化时,对传感器测量范围影响不大。此研究对大半径涡流传感器设计制作具有重要意义。
In order to realize the longer-distance detection of metal flying objects in limited space,the measure of large-radius eddy current sensor was proposed.Based on the Biot-Savart law,the mathematical model of the probe coil of the large-radius eddy current sensor was established.Starting from optimizing the geometric parameters of the coil and using the control variable method,the influence of different outside radius,inside radius and thickness of the coil on the measuring range of the sensor was analyzed in MATLAB,and it carried out the simulation verification in Ansoft Maxwell.The result shows that:when it is used for long-distance detection,the larger the outer radius of the coil,the greater the axial magnetic induction intensity,the higher the sensitivity,and the larger the measurement range.And when the inner radius and thickness of the probe coil change,the measurement range of the sensor is not affected much.This study is of great significance to theoretical guidance for the design and production of the large-radius eddy current sensor.
作者
郭文超
陈昌鑫
马铁华
GUO Wenchao;CHEN Changxin;MA Tiehua(State Key Laboratory of Electronic Measurement Technology,North University of China,Taiyuan 030051,China;School of Electrical and Control Engineering,North University of China,Taiyuan 030051,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2021年第3期235-239,252,共6页
Journal of Ordnance Equipment Engineering
基金
山西省高等学校科技创新项目(2019L0536)
山西省高等学校青年科研人员培育计划项目(1912100027MZ)
山西省研究生教育创新项目(2020SY404)
中北大学研究生科技立项(20191671)。
