Influence of Fix-side on Resonance Performance of Ultrasonic Transducer

In designing process of the transducer,fixed-side which is used fixing transducer ususlly be ignored.In this paper,based on equivalent circuit of half wavelength transducer,the conductance and resonance equation of ultrasonic transducer with fixed-side were given using electromechanical analogy method.And the influence of ultrasonic transducer with fixed-side on the resonance performance was discussed.The results show the resonace frequency of ultrasonic transducer decreases with the increases of the length and the increase of the diameter of the fix-side;it should change the longth of the front-side base on the size of the fixed-side and make ultrasonic transducer in best vibration state.A multiple longitudinal transducer viberation device is designed by the principle and requirements of power ultrasonic vibrations system.According to the result of research,ultrasonic transducer was designed and measured.The result show that the transducer work normally on the designing frequensy and the correct design.The study can provide theoretical basis for optimized designing and using ultrasonic transducer.