在纵振型变幅杆等效电路的基础上，研究了三类负载超声变幅杆的共振频率与放大系数。
Based on mechanic equivalent circuit of the longitudinal ultrasonic horn, the resonance frequency and the amplitude magnification coefficient of three kinds of loaded horns are studied.
在负载为纯力抗的状况下，利用纵振型变幅杆等效四端网络，对频率方程和放大系数进行了研究。
Based on equivalent four-terminal networks of the longitudinal ultrasonic transformer, the resonant frequency equation and the amplitude magnification coefficient, with reactive load, are studied.
由变幅杆大端直径、放大倍数、面积系数等已知条件，按照变幅杆设计理论对超声振动系统中的变幅杆进行设计；
According to the designing theory of amplitude amplifier pole, it could be designed by big end diameter, magnification, area index and other parameters.
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