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Mu G, Dong H, Sun T, Grattan KTV, Wu Z, Zhao J. A switching method for traveling/standing wave transportation modes in two-dimensional acoustic fields using a dual-transducer support structure. ULTRASONICS SONOCHEMISTRY 2023; 101:106724. [PMID: 38100894 PMCID: PMC10762448 DOI: 10.1016/j.ultsonch.2023.106724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/24/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
The dual-transducer support structure discussed has the advantages of a simple structure and low cost, as well as allowing for the use of both Traveling-Wave (TW) and Standing-Wave (SW) acoustic transportation, supporting its use in pharmaceutical and biochemical analysis, for example. By adjusting the distance between the vibrating plate and the reflector which forms SW field in the y direction, the control of the position of the SW nodes or the TW component along the x direction allows the formation of a Two-Dimensional Standing Wave (2D-SW) or a Traveling Wave (TW) acoustic field, and these could be used for transportation in the x direction. It has been found that the x position of the SW nodes can be adjusted through changing the temporal phase shift, θ, which permits multiple objects to be transported using the 2D-SW mode. By comparison, TWs in the opposite direction could be generated at a pair of specific temporal phase shifts, allowing fast transportation using the TW mode. In this research work, an experiment has been carried out to transport polystyrene spheres using the two modes by programming the temporal phase shift, θ, this illustrating that precise position control of the multiple objects transported was possible using the 2D-SW mode, while high-speed transportation (up to 540 mm/s) was realized using the TW mode, showing that the dual-transducer support structure could be used effectively for accurate and fast transportation. As a fully non-contact method, the dual-transducer support structure can be seen to work in the 2D-SW mode for reaction synthesis or detection applications, and also in TW mode for rapid sample transportation applications.
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Affiliation(s)
- Guanyu Mu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Huijuan Dong
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
| | - Tong Sun
- School of Science & Technology, City, University of London, London EC1V 0HB, United Kingdom
| | - Kenneth T V Grattan
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China; School of Science & Technology, City, University of London, London EC1V 0HB, United Kingdom
| | - Zhiguang Wu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China
| | - Jie Zhao
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China.
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2
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Honda K, Fujiwara K, Hasegawa K, Kaneko A, Abe Y. Coalescence and mixing dynamics of droplets in acoustic levitation by selective colour imaging and measurement. Sci Rep 2023; 13:19590. [PMID: 37949912 PMCID: PMC10638323 DOI: 10.1038/s41598-023-46008-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
Acoustic levitation is well-suited to 'lab-on-a-drop' contactless chemical analysis of droplets. Rapid mixing is of fundamental importance in lab-on-a-drop platforms and many other applications involving droplet manipulation. Small droplets, however, have low Reynolds numbers; thus, mixing via turbulence is not possible. Inducing surface oscillation is effective in this regard, however, the relationship between internal flow and mixing dynamics of droplets remains unclear. In this study, we conducted a set of simultaneous optical measurements to assess both the flow field and the distribution of fluid components within acoustically levitated droplets. To achieve this, we developed a technique to selectively separate fluorescent particles within each fluid, permitting the measurement of the concentration field based on the data from the discrete particle distribution. This approach revealed a relationship between the mixing process and the internal flow caused by surface oscillation. Thus, the internal flow induced by surface oscillation could enhance droplet mixing. Our findings will be conducive to the application and further development of lab-on-a-drop devices.
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Affiliation(s)
- Kota Honda
- Graduate School of Science and Technology, University of Tsukuba, Tsukuba, 305-8573, Japan
| | - Kota Fujiwara
- Graduate School of Science and Technology, University of Tsukuba, Tsukuba, 305-8573, Japan
| | - Koji Hasegawa
- Department of Mechanical Engineering, Kogakuin University, Tokyo, 163-8677, Japan
| | - Akiko Kaneko
- Institute of Systems and Information Engineering, University of Tsukuba, Tsukuba, 305-8573, Japan.
| | - Yutaka Abe
- Professor Emeritus, University of Tsukuba, Tsukuba, 305-8573, Japan
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Lucchetta DE, Castellini P, Martarelli M, Scalise L, Pandarese G, Riminesi C, Singh G, Di Donato A, Francescangeli O, Castagna R. Light-Controlled Rotational Speed of an Acoustically Levitating Photomobile Polymer Film. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16020553. [PMID: 36676299 PMCID: PMC9860897 DOI: 10.3390/ma16020553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 05/14/2023]
Abstract
In this work, we study the light-induced changes of the rotational speed of a thin photomobile film using a single-axis acoustic levitator operating at 40 kHz. In our experiments, a 50 μm thick photomobile polymer film (PMP) is placed in one of the nodes of a stationary acoustic field. Under the action of the field, the film remains suspended in air. By externally perturbing this stable equilibrium condition, the film begins to rotate with its natural frequency. The rotations are detected in real time by monitoring the light of a low power He-Ne laser impinging on and reflected by the film itself. During the rotational motion, an external laser source is used to illuminate the PMP film; as a consequence, the film bends and the rotational speed changes by about 20 Hz. This kind of contactless long-distance interaction is an ideal platform for the development and study of many electro-optics devices in microgravity and low-friction conditions. In particular, we believe that this technology could find applications in research fields such as 3D dynamic displays and aerospace applications.
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Affiliation(s)
- Daniele Eugenio Lucchetta
- Dipartimento SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Optoacoustic Lab, Dipartimento SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Correspondence: (D.E.L.); (R.C.)
| | - Paolo Castellini
- Dipartimento DIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Milena Martarelli
- Dipartimento DIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Lorenzo Scalise
- Dipartimento DIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Giuseppe Pandarese
- Dipartimento DIISM, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Cristiano Riminesi
- CNR, Institute of Heritage Science, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Gautam Singh
- Department of Applied Physics, Amity Institute of Applied Sciences, Amity University, Noida 201313, Uttar Pradesh, India
| | - Andrea Di Donato
- Dipartimento DII, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Oriano Francescangeli
- Dipartimento SIMAU, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Riccardo Castagna
- CNR, Institute of Heritage Science, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
- URT-CNR@UNICAM, Photonic Materials Laboratory, Consiglio Nazionale delle Ricerche (CNR), c/o Università di Camerino (UNICAM), Polo di Chimica, Via Sant’Agostino, 1, 62032 Camerino, Italy
- Correspondence: (D.E.L.); (R.C.)
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4
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Stein M, Keller S, Luo Y, Ilic O. Shaping contactless radiation forces through anomalous acoustic scattering. Nat Commun 2022; 13:6533. [PMID: 36319654 PMCID: PMC9626492 DOI: 10.1038/s41467-022-34207-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Waves impart momentum and exert force on obstacles in their path. The transfer of wave momentum is a fundamental mechanism for contactless manipulation, yet the rules of conventional scattering intrinsically limit the radiation force based on the shape and the size of the manipulated object. Here, we show that this intrinsic limit can be broken for acoustic waves with subwavelength-structured surfaces (metasurfaces), where the force becomes controllable by the arrangement of surface features, independent of the object's overall shape and size. Harnessing such anomalous metasurface scattering, we demonstrate complex actuation phenomena: self-guidance, where a metasurface object is autonomously guided by an acoustic wave, and tractor beaming, where a metasurface object is pulled by the wave. Our results show that bringing the metasurface physics of acoustic waves, and its full arsenal of tools, to the domain of mechanical manipulation opens new frontiers in contactless actuation and enables diverse actuation mechanisms that are beyond the limits of traditional wave-matter interactions.
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Affiliation(s)
- Matthew Stein
- grid.17635.360000000419368657Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455 USA
| | - Sam Keller
- grid.17635.360000000419368657Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455 USA
| | - Yujie Luo
- grid.17635.360000000419368657Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455 USA
| | - Ognjen Ilic
- grid.17635.360000000419368657Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455 USA
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Aono K, Aoyagi M. Rapid rise of planar object by near-field acoustic levitation on recessed acoustic radiation surface. ULTRASONICS 2022; 119:106596. [PMID: 34624582 DOI: 10.1016/j.ultras.2021.106596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 08/23/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Near-field acoustic levitation (NFAL) can be observed for a planar object placed on the vibrating surface of a longitudinal vibrator. However, for a vibrating surface with a recess, not only NFAL was observed, but also jumping behavior with a snapping sound. This phenomenon was examined analytically and experimentally with bolt-clamped Langevin transducers and a duralumin vibratory horn. Jumping occurred when the minimum value of the acoustic radiation force was larger than the weight of the object. The snapping sound during jumping was generated by the sound pressure that was focused at the center of the bottom surface of the object when the acoustic radiation force peaked due to acoustic resonance in the recessed space.
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Affiliation(s)
- Kohei Aono
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585, Japan
| | - Manabu Aoyagi
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Hokkaido 050-8585, Japan.
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Simon G, Andrade MAB, Desmulliez MPY, Riehle MO, Bernassau AL. Numerical Determination of the Secondary Acoustic Radiation Force on a Small Sphere in a Plane Standing Wave Field. MICROMACHINES 2019; 10:mi10070431. [PMID: 31261902 PMCID: PMC6680761 DOI: 10.3390/mi10070431] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 06/25/2019] [Accepted: 06/26/2019] [Indexed: 02/07/2023]
Abstract
Two numerical methods based on the Finite Element Method are presented for calculating the secondary acoustic radiation force between interacting spherical particles. The first model only considers the acoustic waves scattering off a single particle, while the second model includes re-scattering effects between the two interacting spheres. The 2D axisymmetric simplified model combines the Gor’kov potential approach with acoustic simulations to find the interacting forces between two small compressible spheres in an inviscid fluid. The second model is based on 3D simulations of the acoustic field and uses the tensor integral method for direct calculation of the force. The results obtained by both models are compared with analytical equations, showing good agreement between them. The 2D and 3D models take, respectively, seconds and tens of seconds to achieve a convergence error of less than 1%. In comparison with previous models, the numerical methods presented herein can be easily implemented in commercial Finite Element software packages, where surface integrals are available, making it a suitable tool for investigating interparticle forces in acoustic manipulation devices.
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Affiliation(s)
- Gergely Simon
- School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
- OnScale Ltd., Glasgow, G2 5QR, UK
| | - Marco A B Andrade
- Institute of Physics, University of São Paulo, 05508-090, São Paulo, Brazil
| | - Marc P Y Desmulliez
- School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Mathis O Riehle
- Institute of Molecular Cell and Systems Biology, Centre for Cell Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Anne L Bernassau
- School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK.
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Hemachandran E, Karthick S, Laurell T, Sen AK. Relocation of coflowing immiscible liquids under acoustic field in a microchannel. ACTA ACUST UNITED AC 2019. [DOI: 10.1209/0295-5075/125/54002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Furumoto T, Hasegawa K, Makino Y, Shinoda H. Three-Dimensional Manipulation of a Spherical Object Using Ultrasound Plane Waves. IEEE Robot Autom Lett 2019. [DOI: 10.1109/lra.2018.2880330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Inoue S, Mogami S, Ichiyama T, Noda A, Makino Y, Shinoda H. Acoustical boundary hologram for macroscopic rigid-body levitation. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2019; 145:328. [PMID: 30710964 DOI: 10.1121/1.5087130] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
In previous studies, acoustical levitation in the far-field was limited to particles. Here, this paper proposes the "boundary hologram method," a numerical design technique to generate a static and stable levitation field for macroscopic non-spherical rigid bodies larger than the sound wavelength λ. This paper employs boundary element formulation to approximate the acoustic radiation force and torque applied to a rigid body by discretizing the body surface, which is an explicit function of the transducer's phase and amplitude. Then, the drive of the phased array is numerically optimized to yield an appropriate field that stabilizes the body's position and rotation. In experiments, this paper demonstrates the levitation in air of an expanded polystyrene sphere with a diameter of 3.5 λ and a regular octahedron with diagonal length of 5.9 λ, both located 24 λ from the acoustic elements, by a 40 kHz (λ = 8.5 mm) ultrasonic phased array. This method expands the variety of objects that can be levitated in the far-field of an ultrasonic phased array.
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Affiliation(s)
- Seki Inoue
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Shinichi Mogami
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Tomohiro Ichiyama
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan
| | - Akihito Noda
- Department of Mechatronics, Nanzan University, 18 Yamazato-cho, Showa-ku, Nagoya, Japan
| | - Yasutoshi Makino
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba, Japan
| | - Hiroyuki Shinoda
- Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba, Japan
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Masuda K, Koyama D, Matsukawa M. Noncontact Transportation of Planar Object in an Ultrasound Waveguide. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2018; 65:2160-2166. [PMID: 30418873 DOI: 10.1109/tuffc.2018.2870069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper investigates acoustic levitation and noncontact transportation techniques for use with planar objects. An acoustic levitation system was developed which consists of a 1-mm-thick and 400-mm-long bending plate along with two bolt-clamped Langevin-type transducers (BLTs) that have stepped horns. A plane reflector was installed parallel to the vibrating plate to generate an ultrasound standing wave between the reflector and the plate. The sound pressure distribution in the ultrasound waveguide was calculated via finite-element analysis to investigate the effects of levitation of a planar object in the standing-wave field. A 1-mm-thick polystyrene plate was levitated along the nodal line of the acoustic standing wave in the waveguide. By controlling the driving phase difference between the two BLTs, the position at which flexural vibration occurs on the vibrating plate could be shifted along the length direction, and the trapped planar object could be moved by 9 mm along the same direction when the phase difference was varied from 0° to 360°.
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11
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Marzo A, Caleap M, Drinkwater BW. Acoustic Virtual Vortices with Tunable Orbital Angular Momentum for Trapping of Mie Particles. PHYSICAL REVIEW LETTERS 2018; 120:044301. [PMID: 29437423 DOI: 10.1103/physrevlett.120.044301] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Indexed: 05/09/2023]
Abstract
Acoustic vortices can transfer angular momentum and trap particles. Here, we show that particles trapped in airborne acoustic vortices orbit at high speeds, leading to dynamic instability and ejection. We demonstrate stable trapping inside acoustic vortices by generating sequences of short-pulsed vortices of equal helicity but opposite chirality. This produces a "virtual vortex" with an orbital angular momentum that can be tuned independently of the trapping force. We use this method to adjust the rotational speed of particles inside a vortex beam and, for the first time, create three-dimensional acoustics traps for particles of wavelength order (i.e., Mie particles).
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Affiliation(s)
- Asier Marzo
- Department of Mechanical Engineering, University of Bristol. University Walk, Bristol BS8 1TR, United Kingdom
| | - Mihai Caleap
- Department of Mechanical Engineering, University of Bristol. University Walk, Bristol BS8 1TR, United Kingdom
| | - Bruce W Drinkwater
- Department of Mechanical Engineering, University of Bristol. University Walk, Bristol BS8 1TR, United Kingdom
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