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。
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.
目的研制用于电阻抗断层成像系统的信号源，提高现有系统的高频特性，同时降低其噪声水平。
A new signal source for electric impedance tomography system is developed to improve the high-frequency performance and to reduce the noise level of the old one.
本文讨论了在电子束控制放电激光器中，由于传输线与放电阻抗失配所引起的放电特性的变化。
This paper discusses the change of discharge properties due to mismatch effect between transmission line and discharge impedance in electron beam controlled discharge gas lasers.
给出了求各路分配节和变阻节特性阻抗以及隔离电阻的计算公式，其中含有一个可供灵活选择的任意常系数。
The equations used to find the values of the wave impedances of the dividing sections and the impedance-transforming sections as well as the isolating resistances are given.
对四边形和方向圆特性阻抗继电器躲线路最大潮流的能力进行了详细分析，提出了距离保护负荷限制电阻的整定原则和整定方法，并给出了整定建议值。
It puts forward the setting principle and method of load limiting resistor of backup distance protection and gives the propositional setting value of load limiting resistor.
对四边形和方向圆特性阻抗继电器躲线路最大潮流的能力进行了详细分析，提出了距离保护负荷限制电阻的整定原则和整定方法，并给出了整定建议值。
It puts forward the setting principle and method of load limiting resistor of backup distance protection and gives the propositional setting value of load limiting resistor.
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