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dc.creatorBrizzotti Andrade, Marco Aurélioes_ES
dc.creatorRamos, Tiago S.es_ES
dc.creatorAdamowski, Julio C.es_ES
dc.creatorMarzo Pérez, Asieres_ES
dc.description.abstractWe model and realize an ultrasonic contactless pick-and-place device capable of picking, self-centering, self-orienting, translating, and releasing flat millimetric objects. The device is an ultrasonic Langevin transducer operating at 21 kHz that radiates into air through a tapered tip. Objects are trapped few micrometers below the tip due to the near-field acoustic levitation phenomenon. We first investigate the conditions to achieve an attractive force on the object depending on its size and the device operating frequency. Second, we use a 3D acoustic model that describes the converging forces and torque that provide the self-centering and self-orienting capabilities. Third, a more advanced Computational Fluid Dynamics model based on the Navier-Stokes equations explains the small gap between the tip and the trapped object. The contactless manipulation capabilities of the device are demonstrated by picking, transporting, and releasing a Surface Mount Device in air. The presented manipulation concept can be an interesting alternative for manipulating delicate objects such as microelectromechanical devices, silicon dies, or micro-optical devices.en
dc.description.sponsorshipThis research was supported by the São Paulo Research Foundation—FAPESP (Grant Nos. 2017/27078-0 and 2018/04101-0).en
dc.format.extent6 p.
dc.publisherAmerican Institute of Physicsen
dc.relation.ispartofApplied Physics Letters, 2020, 116 (5), 054104en
dc.rights© 2020 Author(s).en
dc.subjectAcoustic levitationen
dc.subjectAcoustic phenomenaen
dc.subjectAcoustic radiation pressureen
dc.subjectComputational fluid dynamicsen
dc.subjectAcoustic modeling, simulation and analysisen
dc.subjectNavier Stokes equationsen
dc.titleContactless pick-and-place of millimetric objects using inverted near-field acoustic levitationen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentEstadística, Informática y Matemáticases_ES
dc.contributor.departmentEstatistika, Informatika eta Matematikaeu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.type.versionVersión publicada / Argitaratu den bertsioaes

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