Dealt with in this paper are characteristics of the piezoelectric transducer around its parallel resonance frequency, including the auto-power-adjusting feature, the quality factor, the efficiency, the required driving voltage, and the actual endured voltage, which are all important to the reasonable application of high-power ultrasonic transducers.

Research on control algorithm in lower mechanical resonance frequency of the theodolite;

Effect of cross-section area ratio between two ends of a step-barultrasonic transformer on the resonance frequency;

Analysis and Calculation of Stator Resonance Frequencyin Ultrasonic Motor of Wave Traveling;

Analysis of mounting resonant frequency of piezo-electric acceleration sensor;

Effect on resonant frequency of PZT micro-sensor by DC voltage;

Modeling resonant frequency of microstrip antenna based on neural network ensemble

Investigation of analytic potential energy function,harmonic frequency and vibrational levels for the 2~3Σ_g~+ state of spin-aligned dimer ~7Li_2;

An efficient convenient harmonic frequency measurement system is reported in this paper.

Employing the Rydberg-Klein-Rees method,the harmonic frequency is derived from the analytic potential energy function and then o.