超声手术刀换能器的谐振频率特性研究

Study on Characteristics of Resonant Frequency of Ultrasonic Scalpel Transducer

介绍了超声手术刀换能器的结构,详细分析了换能器的等效电路.通过Matlab仿真,研究了手术刀换能器的谐振频率特性,并与实际测量作比较,验证了对该手术刀换能器的等效电路和电参数的设置基本符合实际.在此基础上,还进行了外接匹配电感的公式推导研究,以便找到更适合电路的电感参数.

A structure of the ultrasonic scalpel transducer is described with analysis of the equivalent circuit of the transducer. The characteristics of the transducer＇ s resonant frequency were studied through MATLAB simulation. Compared with the actual measurement results, both the equivalent circuit and the parameters are proved to be reasonable. In addition, an external matching inductor formula is derived in order to find a more suitable inductance parameters.