Combined with impedance concept, a method for on line structure health monitoring based on self sensing piezoelectric patches, which are bonded on the surface of the structure, is presented.
利用自驱动、自传感特性的压电陶瓷片，粘贴在外部结构的表面，结合动态阻抗的概念，提出了一种机电耦合的在线压电阻抗技术用于结构健康诊断。
Numerical examples are shown to highlight the effects introduced by the anisotropic surface impedance. The method is realized by using the graphic electromagnetic computing (GRECO).
同时利用图形电磁计算（ GRECO）方法实现对各向异性材料的曲面结构的电磁计算。
This paper studied the characteristics of electromagnetic wave propagation in chiral media, and got the expessions of surface impedance and admittance by use of vector circle method.
本文对电磁波在手征介质中的传播进行了研究，利用矢量圆法对传播中介质所表现出的表面阻抗和导纳进行了推导。
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