2019Unpublished venueRequires access

Self-propelled Swimmer Propulsion System using SAW and BAW

Kazuki Nishio, Deqing Kong, Minoru Kurosawa

Open publisher page 3 citations

Abstract

Many researches on self-propelled swimmer actuators using ultrasonic vibrators have been discussed with acoustic streaming. However we suggest that this is due to the acoustic radiation force caused by the acoustic impedance difference. In this research, we make two kinds of swimmers using surface acoustic wave (SAW) that generates 9.6MHz Rayleigh wave and bulk acoustic wave (BAW) that generates 1.6MHz Bulk wave, and compare the thrust of swimmers calculated acoustic radiation force from vibration velocity and measure using digital force gauge. The results show that the order of thrusts of SAW and BAW are much different. The movement of the interface between the ultrasonic transducer and the liquid is required to discuss more strictly.

About this research paper

What this paper is about

Many researches on self-propelled swimmer actuators using ultrasonic vibrators have been discussed with acoustic streaming. However we suggest that this is due to the acoustic radiation force caused by the acoustic impedance difference. In this research, we make two kinds of swimmers using surface acoustic wave (SAW) that generates 9.6MHz Rayleigh wave and bulk acoustic wave (BAW) that generates 1.6MHz Bulk wave, and compare the thrust of swimmers calculated acoustic radiation force from vibration velocity and measure using digital force gauge. The results show that the order of thrusts of SAW and BAW are much different. The movement of the interface between the ultrasonic transducer and the liquid is required to discuss more strictly.

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OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Many researches on self-propelled swimmer actuators using ultrasonic vibrators have been discussed with acoustic streaming. However we suggest that this is due to the acoustic radiation force caused by the acoustic impedance difference. In this research, we make two kinds of swimmers using surface acoustic wave (SAW) that generates 9.6MHz Rayleigh wave and bulk acoustic wave (BAW) that generates 1.6MHz Bulk wave, and compare the thrust of swimmers calculated acoustic radiation force from vibration velocity and measure using digital force gauge. The results show that the order of thrusts of SAW and BAW are much different. The movement of the interface between the ultrasonic transducer and the liquid is required to discuss more strictly.

Key concepts: Acoustic radiation force, Acoustics, Acoustic streaming, Surface acoustic wave, Transducer, Acoustic radiation, Vibration, Thrust

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