The non-singleresonance characteristics appear by forming proper impedance matching layers on the radiative surface of longitudinal mode piezoelectric transducer.
在复合棒纵向换能器的辐射端加上适当材料的阻抗匹配层，可以使其工作在非单谐振状态下。
2
This dissertation analyzes the characteristics of single stage LC filter, two-stage LC filter, and resonance filter respectively.
本论文分析了单级LC滤波器、两级LC滤波器和谐振滤波器三种滤波器的特点。
3
There are many reports on extracting the single frequency signal under noise by the stochastic resonance, but in which the information that the signal carries is zero.