非均匀电场测量系统的研究与设计

当输电线路跨越民房或蔬菜大棚等时,下方电场因复杂环境的畸变作用而分布不均,敏感点内狭小区域电场的准确测量成为电磁环境研究的关键问题.目前,国内对非均匀电场测量原理和系统研究较少,文中结合现有系统测量原理和方法,通过球形和盒形两种测量系统对电场的影响结果分析,设计了球面上三对沿X、Y、Z轴相互垂直排布的用于狭小空间测量的非均匀电场测量系统,结合悬浮体电场测量原理分析非均匀电场值计算方法,仿真验证了非均匀电场测量误差在10％以内.测量系统实际测量误差在8％以内,从而有效的验证了小尺寸测量系统可有效测量非均匀电场.

Research and Design of Non-uniform Electric Field Measurement system

When the transmission lines across the houses or greenhouses,etc.,the electric field is unevenly distributed due to the distortion of complex environment.Therefore,the accurate measurement of the electric field in the narrow area of the sensitive point has become the key problem in the research of electromagnetic environment.At present,the research on the principle and system of non-uniform electric field measurement is relatively few.Based on the existing system measurement principles and methods,a non-uniform electric field measurement system for small space measurement is designed for the three pairs of the spherical top and the X,Y and Z axes that through the analysis of the influence of the two measurement systems of sphere and box on the electric field.The calculation method of non-uniform electric field is analyzed by using the principle of the measurement of the electric field of the suspension body.The simulation verifies that the measurement error of the non-uniform electric field is within 10％.The actual measurement error of the measurement system is within 8％,which effectively verifies the accuracy of the small-size measurement system for the measurement of the non-uniform electric field.