Publications related to Laser Doppler Vibrometer measurements of the 3D pressure field for the estimation of the radiation force produced by an acoustic standing-wave levitator

Acoustic Levitation apparatus (Robotics Practicals)

Mahmut Selman Sakar, Amit Yedidia Dolev, Bora Yalcin

The following data contain the information and files, which are required to recreate and build the experimental setup that is described in the Laboratory manual. Further details can be found in the associated publication “A graduate laboratory experiment t ...

Zenodo2023

A graduate laboratory experiment to study the dynamics of an acoustically levitated particle

Mahmut Selman Sakar, Lorenzo Francesco John Noseda, Amit Yedidia Dolev, Bora Yalcin

The comprehension of physical wave phenomena is imperative for students in the fields of engineering and basic sciences. Laboratory experiments that involve generation of acoustic waves can be used to explain advanced nonlinear wave phenomena. Acoustic lev ...

2023

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Basil Duval, Holger Reimerdes, Christian Gabriel Theiler, Joaquim Loizu Cisquella, Sophie Danielle Angelica Gorno, Claudia Colandrea, Marco Wischmeier, Cedric Kar-Wai Tsui, Mirko Wensing, Hugo De Oliveira

Recent TCV experiments confirm the predicted formation of an electric potential well, below the magnetic X-point, in configurations with unfavorable

B_t

field direction (ion

\nabla B

drift away from the divertor), that substantially reshapes the typica ...

2020

Speed and Stability Limits for High-Speed Bearingless Disc Drives

Yves Perriard, Douglas Martins Araujo

Increasing material costs and emerging applications have steered research trends towards compacter and therefore faster drives. The arising challenges of miniaturization have made contactless magnetic levitation increasingly attractive, which offer practic ...

IEEE2018

Realization of a Diamagnetically Levitating Rotor Driven by Electrostatic Field

Hannes Bleuler, Yuanping Xu, Qingwen Cui, Ryosuke Kan, Jin Zhou

In this paper, a novel configuration of frictionless diamagnetic levitation combined with electrostatic glass motor is presented. A 12.5 mm diameter disc shaped rotor comprised of pyrolytic graphite and glass is fabricated. The rotor disc is levitated stab ...

Institute of Electrical and Electronics Engineers2017

Stabilization of electrodynamic bearings with active magnetic dampers

Qingwen Cui

Electrodynamic Bearings (EDBs) are a kind of passive magnetic bearings that exploits the interaction between the induced eddy currents in a conductor and a magnetic field to provide re-storing forces. They have been regarded as an appealing alternative to ...

EPFL2016

Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light

Salma Farahi

Acousto-optical coherence tomography (AOCT) is a variant of acousto-optic imaging (also called ultrasound modulated optical tomography) that makes possible to get resolution along the ultrasound propagation axis z. We present here AOCT experimental results ...

Optical Soc Amer2013

Cycling dynamics of the internal kink mode in non-linear two-fluid MHD simulations

Federico David Halpern

The present work describes non-linear simulations leading to a description of diamagnetic thresholds for sawtooth cycles in tokamaks. Provided that a criterion of diamagnetic stabilization for a m/n=1/1 tearing is fulfilled, it is shown that diamagnetic ef ...

2011

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas

Federico David Halpern

The cycling dynamics of the internal kink mode, which drives sawtooth oscillations in tokamak plasmas, is studied using the three dimensional, non-linear magnetohydrodynamic (MHD) code XTOR-2F [H. Lütjens and J.-F. Luciani, J. Comput. Phys. 229, 8130 (2010 ...

American Institute of Physics2011

Position Controlled Diamagnetic Linear Conveyor

Hannes Bleuler, Dominique Chapuis, François Barrot, Thomas Bosgiraud, Benjamin Burns

Magnetic levitation is an interesting concept in applications where friction and wear-particle contamination should be avoided. In this respect, a former study has shown that diamagnetic levitation, in conjunction with an electrodynamic impulse drive, is a ...

2006

Laser Doppler Vibrometer measurements of the 3D pressure field for the estimation of the radiation force produced by an acoustic standing-wave levitator

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Acoustic Levitation apparatus (Robotics Practicals)

A graduate laboratory experiment to study the dynamics of an acoustically levitated particle

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Speed and Stability Limits for High-Speed Bearingless Disc Drives

Realization of a Diamagnetically Levitating Rotor Driven by Electrostatic Field

Stabilization of electrodynamic bearings with active magnetic dampers

Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light

Cycling dynamics of the internal kink mode in non-linear two-fluid MHD simulations

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas

Position Controlled Diamagnetic Linear Conveyor

Experimental verification of X-point potential well formation in unfavorable magnetic field direction

Acoustic Levitation apparatus (Robotics Practicals)

Realization of a Diamagnetically Levitating Rotor Driven by Electrostatic Field

A graduate laboratory experiment to study the dynamics of an acoustically levitated particle

Stabilization of electrodynamic bearings with active magnetic dampers

Speed and Stability Limits for High-Speed Bearingless Disc Drives

Cycling dynamics of the internal kink mode in non-linear two-fluid MHD simulations

Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light

Position Controlled Diamagnetic Linear Conveyor

Diamagnetic thresholds for sawtooth cycling in tokamak plasmas