Resonance Frequency Tracing System for Langevin Type Ultrasonic Transducers

This paper proposes a system to trace resonance frequencies of Langevin type ultrasonic transducers. The system consists of a microcomputer, detecting circuits and a direct digital synthesizer. Fabrication of the system is reported. Step responses are described as tracing performance. Vibration amplitude modulation using the system is also indicated as an application for mechatronics.