horizontal levitation particle

June 18, 2014. Horizontal levitation: The ultimate solution to particle separation. by Springer. Magnetic separators exploit the difference in magnetic properties between …

Science News. from research organizations. Horizontal levitation: The ultimate solution to particle separation. Date: June 18, 2014. Source: Springer …

A possibility of sustaining a stable 3D-levitation of a collection of particles in an acoustic field under the conditions of all-around irradiation by monochromatic ultrasonic waves in air is investigated. The levitation of particles is ensured by placing them into a field of standing waves of a particular configuration. The particles are …

Abstract. The classical particle swarm optimization (PSO) algorithm is applied for the first time to the authors' knowledge for determining the equilibrium position of the levitated …

Acoustic levitation 1,2 uses the radiation force 3 generated by sound waves to suspend liquids 4,5 and solids 6 in mid-air. This method has been used in a wide range of applications, such as chemical analysis of levitated samples, 7,8 trapping heavy gases, 9 measuring the surface tension of liquids, 10,11 amorphous drugs production, 12 and …

1 Citations. 1 Altmetric. Metrics. A multi-beam optical tweezer scheme achieves levitation and cooling of two nanoparticles at the same time. Single …

Although levitation based on clever illusion rather than physical principles has been a mainstay of the conjurer's act, the physics of levitation makes it an important tool for the …

The relationship between levitation force, particle diameter, internal channel size, and transmission thickness is established through the motion manipulation tests of multi-configuration channel levitation micro-particles in components. ... In the horizontal direction, particles are also affected by radiation forces F x and F y. Open in …

particle swarm optimization algorithm for diamagnetically stabilized horizontal permanent magnet levitation i.v. nemoianu1, e. cazacu1 1department of electrical engineering, ...

Effect of acoustic levitation force on aerodynamic particle removal from a surface. The flow field generated by a downward-facing annular slot jet with a circumferential velocity component and a vacuum outlet port confined between two horizontal planes is referred to as a bounded vortex. A bounded vortex can be used to …

The electrostatic levitation system for active suspension control of test sample in horizontal and vertical axes ... Materials properties measurements and particle beam interactions studies using electrostatic levitation ... travels in complex and uncertain terrain. Its vertical stability is a key factor affecting the working state and service ...

Introduction. Since the first levitation of an object with sound, almost a century ago, the physics behind levitation and manipulation of objects with acoustic waves has been thoroughly studied 1 – 3.With the exception of a limited number of studies involving chemical analysis 4, 5, acoustic levitation has been mainly used to observe …

The trajectories of particles dropped from the top of the discharge chamber are used to reconstruct the vertical electric force acting on the particles. The resulting data, together with the results from a self-consistent fluid model, are used to determine the lower levitation limit for dust particles in the discharge and the approximate height ...

The flow field generated by a downward-facing annular slot jet with a circumferential velocity component and a vacuum outlet port confined between two horizontal planes is referred to as a bounded vortex. A bounded vortex can be used to aerodynamically transport particles from a surface, allowing cleaning of a dust-covered …

Magnetic separators exploit the difference in magnetic properties between minerals, for example when separating magnetite from quartz. But this exercise becomes considerably more complex when the particles are not magnetic. In the wake of previous particle levitation experiments under high-power magnetic fields, a new study reveals …

Stable optical levitation of transparent solid glass spheres has been demonstrated using two horizontal TEM00 laser beams. The experimental results agree with a theoretical calculation which gives the value of the lateral force pushing the sphere towards the region of maximum light intensity and maintaining it on the axis of the beam.

The levitation of particles is ensured by placing them into a field of standing waves of a particular configuration. The particles are controlled in the field in the horizontal plane by varying ...

Abstract A method of control for an ordered group of particles that levitate in an ultrasonic field and structures of rectilinear segments is proposed. An ultrasonic field in air at a frequency of 40 kHz and particles whose dimensions are less than a quarter of a wavelength or thin cylindrical objects with diameters of less than a quarter of a …

We report a novel counterintuitive vertical levitation structure involving permanent magnets and at least one stabilizing diamagnetic piece. The setup consists of two permanent NdFeB magnets in a ...

Horizontal levitation: The ultimate solution to particle separation. Separating particles from the liquid they are in can now be done with a new concept. …

In order to study the acoustic levitation and manipulation of micro-particles in the heterogeneous structures inside metal, a test system for internal levitation in three-dimensional space is designed, establishing the 3D motion model of ultrasonic levitation and manipulation of micro-particles. The relationship between levitation force, particle …

When we moved the optical fiber in the vertical direction using an xyz ... [1–5] and has been used for particle trapping, manipulations, levitation [5–10]. If the particle or the surrounding gas absorbs the photon beam and is heated unevenly it is also subjected to an additional but different kind of radiation forces called photophoretic ...

The vertical length can reach 5λ/6, significantly beyond ... One of the advantages of acoustic levitation in controlling the particle layer on droplet surface is that it has no requirement of the electron/magnetic properties of the particles. Therefore, this method provides a reference for the operation of liquid marbles coated with non ...

The levitation of liquid droplets led to the first observation of the influence of Mie resonances on the magnitude of the radiation pressure force required to levitate a spherical particle [67].Ashkin and Dziedzic reported that the size of the droplet could be determined with a precision of 1 part in 10 5 by monitoring the radiation pressure force …

Operation of a horizontal axis Levitron is a variation on the levitation theme which could provide a new topic for university students and entertain schoolchildren. Because all Levitrons are simple analogues to space dynamics, NMR/MRI, ESR and particle trapping, the easier to operate horizontal device could be of interest to physics …

In this work, we show how a customised reflective acoustic metamaterial enables the levitation of multiple particles, not necessarily on a line and with arbitrary …

In the wake of previous particle levitation experiments under high-power magnetic fields, a new study reveals that particles are deflected away from the magnet's …

In this paper, we theoretically analyzed the optical forces acting on a particle in the x–u plane to corroborate an optical levitation of an object. In the future, we have to examine the third dimension in order to more accurately investigate the relationship among the three-dimensional trapping, insertion angle θ, horizontal distance D fH ...

model of particles. In the vertical direction, the particles are affected by acoustic radiation force F z. In the horizontal direction, particles are also affected by radiation forces F x and F y. Figure 1. (a) Diagram of the single-axis acoustic levitation device; (b) Diagram of the formation model of a standing wave in the cavity.

Abstract. The optical force on a non-spherical particle subjected to a loosely focused laser beam was calculated using the dynamic ray tracing method. Ellipsoidal particles with different aspect ratios, inclination angles, and positions were modeled, and the effects of these parameters on the optical force were examined. The vertical …

Here, the number-fraction distribution θ p,j is the local concentration of species p around particle j; n j is the number of neighbouring particles around particle j; and s p 2, s 2 p,0, and s 2 ...

Acoustic levitation and the acoustic radiation force. We investigate acoustic levitation in a vertical standing wave in an attempt to understand the basic physical mechanism responsible for this phenomenon. We find that a description in terms of a simple pressure force leads to the prediction of stable equilibria that occur slightly below the ...

d, Approximation of horizontal and vertical radiation forces exerted on a particle located around a levitation trap, as analytically approximated using the Gor'kov potential.

In 2012, Foresti et al. studied the stability of levitated spherical and ellipsoidal particles in various viscosity, and demonstrated that the stability of the levitated particle is dependent on ...

In the wake of previous particle levitation experiments under high-power magnetic fields, a new study reveals that particles are deflected away from the magnet's round-shaped bore centre in a ...

It was experimentally determined that while the levitation height of small particles (6.37 μm) were unaffected by the RF voltage, larger particles (8.89 and 11.93 μm) exhibited a strong ...

Optical levitation of a non-spherical particle in a loosely focused Gaussian beam. October 2012; ... The vertical component of the optical force parallel to the laser beam axis decreased as the ...