Improved mid-air acoustic tweezers using adaptive phase and amplitude control

Recently, remarkable developments in contact-less manipulation methods using ultrasonic transducer arrays have been reported. Ultrasonic non-contact manipulation enables precise control of small objects without contamination; therefore, it is expected to have a wide range of applications. In this pa...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2022-07, Vol.61 (SG), p.SG8004
Main Authors: Kondo, Shota, Okubo, Kan
Format: Article
Language:English
Subjects:
Acoustic radiation force
Adaptive control
adaptive phase and amplitude control
Amplitudes
Arrays
hemispherical ultrasonic transducer array
mid-air acoustic tweezers
non-contact manipulation
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Summary:Recently, remarkable developments in contact-less manipulation methods using ultrasonic transducer arrays have been reported. Ultrasonic non-contact manipulation enables precise control of small objects without contamination; therefore, it is expected to have a wide range of applications. In this paper, we present a novel approach for the stable non-contact pick-up of small particles from a rigid stage using a hemispherical ultrasonic transducer array. We achieved stable pick-up by employing adaptive phase and amplitude control against the distance from the reflection stage.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ac51c4