摘要
本文应用边界元素法和矩量法研究无损测量中终端开路同轴线作为传感器时的边缘电容及场分布,把边界元素法用在了轴对称的电磁场问题及多介质区域.文中给出了两种方法求解该问题的主要步骤和公式,并对计算细节作了说明,尤其是对奇点的处理.对边缘电容 C(ε)和介电常数ε之间所建立的线性模型进行了全面讨论,给出了齐全的数据和结果,并同有关文献的结果及实验值进行了比较,验证了方法的可靠性及精确性,为实验工作提供了理论依据.
A boundary element method and a moment method are presented here foran open-ended coaxial line for their application in nondestructive measurement of thecomplex permittivity of materials.The paper gives the formulation and calculation of thefringing capacitor and electrical field of open-ended coaxial line.Then the computed re-sults are given.Finally,the linear model of C(ε)andεis discussed.A comparison ofcomputed results with the related literature and experiment values shows evidently thatthe two methods are reliable.
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
1993年第4期106-111,共6页
Journal of Lanzhou University(Natural Sciences)
关键词
同轴线
矩量法
边界元法
电容率
boundary element method
coaxial lines
dielectric constant moment method
