摘要
针对某部队高频电磁镜面TEM室的镜面板平面度误差测量与评定任务,从测量仪器的选择、测量误差的评定等方面解决镜面板平面度测量不确定度的评定问题。与传统的平面度误差测量不确定度评定方案不同,重点针对高频电磁镜面TEM室的超大镜面板平面度进行不确定度评定。测量方法采用相对测量法,从测量便利性方面选择合像水平仪,误差评定选择最小二乘法,基于MATLAB融入蒙特卡罗方法对其进行平面度误差评定,评定结果为4μm,解决了高频电磁镜面板的平面度误差评定问题,保证了高频电磁信号的高保真传递,实现了大型TEM喇叭、D-dot等电磁传感器的精确校准。
Aimed at the task of measuring and evaluating the flatness error of the mirror plate in the TEM chamber of a high frequency electromagnetic mirror,the problem of evaluating the uncertainty of the measurement of the flatness of the mirror plate is solved by selecting the measuring instrument and evaluating the measurement error.Different from the traditional evaluation scheme for the uncertainty of the measurement of flatness error,the emphasis is on the evaluation of the uncertainty of the ultra-large specular plate in the TEM chamber of high-frequency electromagnetic mirror.It adopts the relative measurement method,chooses image level meter from the aspect of measurement convenience,and chooses the least square method for error evaluation.Based on MATLAB and Monte Carlo method,the flatness error evaluation is carried out,and the evaluation result is 4μm.The flatness error evaluation problem of high frequency electromagnetic mirror plate is solved,the high fidelity of transmission of high frequency electromagnetic signal is guaranteed,and the accurate calibration of large TEM horn,D-dot and other electromagnetic sensors are realized.
作者
吴呼玲
WU Huling(College of Intelligent Manufacturing,Shaanxi Institute of Technology,Xi’an 710300,China)
出处
《微型电脑应用》
2024年第4期50-54,共5页
Microcomputer Applications
基金
陕西省教育科学“十四五”规划2021年度课题“基于课堂创新的‘计量仪器与检测’与‘数学建模’课程创新融合探索与实践”(SGH21Y0525)。
