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本文用振动特征方程表示换能器各振动部件的振动特性,确定了机械量(力和速度)与电学量(电压和电流)之间的内在关系。由于特征方程中的系数矩阵是kl的函数(k为波数,l为振动部件的长度),在按频率比例调整尺寸后,因kl为常数,故得到的新换能器保持着原参考换能器的特征,部份性能参数的变化可由比例因子换算求得。因此本文为纵振换能器系列化设计提供了简便方法和理论依据。最后用通用设计程序对实例进行了计算,得到了满意的验证。
In this paper, the vibration characteristic equation is used to represent the vibration characteristics of the transducer’s vibrating parts, and the intrinsic relationship between mechanical quantities (force and velocity) and electrical quantities (voltage and current) is determined. Since the coefficient matrix in the eigenvalue equation is a function of kl (k is the wavenumber and l is the length of the vibrating part), the new transducer is maintained with the original reference transduction The characteristics of the device, some of the performance parameters can be obtained by scaling the conversion factor. Therefore, this article provides a simple method and theoretical basis for the longitudinal vibration transducer series design. Finally, the common design program was used to calculate the examples, and satisfactory verification was obtained.