Aerial intense ultrasonic source integrating the horn and vibrating plate

Abstract

The components of conventional high-intensity aerial ultrasonic sources, including the horn, longitudinal vibrating resonance bar, and transverse vibrating plates, are usually constructed separately. In this paper, a compact ultrasonic source that integrates all component parts was developed. First, the structure of the ultrasonic source was designed by simulation analysis with the finite element method. Next, an actual ultrasonic wave source was manufactured, and its electrical characteristics, vibration characteristics, and sound pressure distribution characteristics were measured. The ultrasonic source formed a strong standing wave sound field in the air, even though the total length was one wavelength of the longitudinal vibration. For an input electric power of 10 W, a high sound pressure in the standing wave sound field of 3.44 kPa was obtained (sound pressure level of about 165 dB).

Evaluation of transducer for cryogenic actuators by equivalent circuit model

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Investigation of the crystal-oriented behavior of rare earth substituted Sr2NaNb5O15 lead-free piezoelectric materials under a high magnetic field

“…Many high-power devices using piezoelectric ceramics have been manufactured for practical use and developed to be highly beneficial for enabling advancements in the fields of robotics and medical technology. [1][2][3][4][5][6] These devices driven by electromagnetic devices are difficult to miniaturize for their complicated structure and decrease output power strictly with gears. Piezoelectric devices have a high output power density maintained through miniaturizing.…”