The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalent circuit input impedance admittance circle diagram.
分析压电式超声波换能器的等效电路，并由等效电路输入阻抗的导纳圆图确定了换能器的元器件参数以及谐振频率、机械品质因数和工作带宽等特征参量。
In this article, we explore the relatively background, detailed work procedure and effect about the surgeon qualification admittance system thorough which has been put in practice in our hospital.
文章就我院推行的“手术医生资格准入制”背景、具体操作程序及效果进行了深入的探索。
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