Position and Orientation Control of Complex-Shaped Samples in Acoustic Levitation

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Controlled levitation has been limited to sub-wavelength samples with few exceptions of spheres and cubes. We demonstrate controlled airborne levitation of 2λ-sized complex-shaped objects (3D letters, X, U, T). The pressure field was tailored to a particular sample shape by arranging multiple small asymmetric acoustic traps. This allows stable locking of the object and control of its orientation and position in mid-air. The pressure field was produced with a 450-element phased array (f = 40kHz) featuring element-wise amplitude and phase control.
Titel på värdpublikation2022 IEEE International Ultrasonics Symposium (IUS)
Antal sidor4
ISBN (tryckt)978-1-6654-7813-7
ISBN (elektroniskt)978-1-6654-6657-8
StatusPublicerad - 2022
MoE-publikationstypA4 Artikel i en konferenspublikation
Evenemang2022 IEEE International Ultrasonics Symposium (IUS) - Venice, Italien
Varaktighet: 10 okt. 202213 okt. 2022


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