Publications associées à Realization of a Diamagnetically Levitating Rotor Driven by Electrostatic Field

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 devices use powerful ultrasonic standing waves to levitate objects in mid-air. We have created a system and method to measure the full harmonic content of the acoustic field accurately. Our study revealed that levitated particles alter ...

Elsevier Science Sa2024

Towards optical MAS magnetic resonance using optical traps

Giovanni Boero, Nergiz Sahin Solmaz, Reza Farsi, Jens Anders

Higher magic angle spinning (MAS) frequencies than currently available are desirable to improve spectral resolution in NMR and EPR systems. While conventional strategies employ pneumatic spinning limited by fluid dynamics, this paper demonstrates the devel ...

Amsterdam2023

Modelling and Sensors for Magnetically-Levitated Disc Drives

Juan Patricio Tomás Peralta Fierro

The development of new industrial applications has diverted the focus of research towards compacter and faster rotatory drives. These requirements push the classical ball-bearings of electric motors to the limits in terms of operational lifetime and fricti ...

EPFL2022

Principles and Test Result of Novel Full Passive Magnetic Levitation Motor with Diamagnetic Disk

Hannes Bleuler

This paper proposes a novel full passive magnetic levitation motor without active magnetic suspension. It has a magnetic levitation unit and a motor unit. The Halbach array permanent magnets and a pyrolytic graphite (PG) disk realize the full passive magne ...

IEEE2021

Characterization and Verification of Eddy-Current Position Sensing for Magnetic Levitation

Yves Perriard, Sean Thomas, Juan Patricio Tomás Peralta Fierro

Magnetically-levitated drives are compelling in applications where the long-lifetime operation or process chamber encapsulation is a requirement. To exploit these advantages, contactless position sensors are needed to estimate the position of the rotor. Of ...

2021

Performance and Micro-Vibrations in Magnetic Bearings for Space Actuators

Guzmán Borque Gallego

The development of new space missions with novel high-performance and very sensitive payloads for Earth observation or scientific missions has imposed considerably tougher requirements in terms of the satellite's pointing accuracy and stability, and thus o ...

EPFL2021

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

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

Yves Perriard, Sean Thomas, Juan Patricio Tomás Peralta Fierro

Magnetically-levitated drives are compelling in applications where long-lifetime operation or process chamber encapsulation is a requirement. To exploit these advantages, contactless position sensors are needed for position information of the rotor. Off-th ...

IEEE2020

Passive diamagnetic contactless suspension rotor with electrostatic glass motor

Hannes Bleuler, Yuanping Xu, Ryosuke Kan, Jin Zhou

In this work, we introduce a newly developed passive and frictionless diamagnetic contactless suspension rotor with electrostatic glass motor. A 20 mm diameter disc-shaped rotor comprised of pyrolytic graphite with glass is fabricated. The rotor is diamagn ...

INST ENGINEERING TECHNOLOGY-IET2019

On-line micro-vibration measurement method for Lorentz-type magnetic-bearing space actuators

Yves Perriard, Douglas Martins Araujo, Leopoldo Rossini, Guzmán Borque Gallego

A novel, cost-effective, real-time and on-line method for measuring the generated micro-vibrations and iden- tifying the forces in a magnetic bearing space actuator is proposed. For its validation, an actively-controlled electrodynamic (Lorentz-type) magne ...

2019

Realization of a Diamagnetically Levitating Rotor Driven by Electrostatic Field

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

Towards optical MAS magnetic resonance using optical traps

Modelling and Sensors for Magnetically-Levitated Disc Drives

Principles and Test Result of Novel Full Passive Magnetic Levitation Motor with Diamagnetic Disk

Characterization and Verification of Eddy-Current Position Sensing for Magnetic Levitation

Performance and Micro-Vibrations in Magnetic Bearings for Space Actuators

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

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

Passive diamagnetic contactless suspension rotor with electrostatic glass motor

On-line micro-vibration measurement method for Lorentz-type magnetic-bearing space actuators

Characterization and Verification of Eddy-Current Position Sensing for Magnetic Levitation

Towards optical MAS magnetic resonance using optical traps

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

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

Passive diamagnetic contactless suspension rotor with electrostatic glass motor

Modelling and Sensors for Magnetically-Levitated Disc Drives

On-line micro-vibration measurement method for Lorentz-type magnetic-bearing space actuators

Integrated, Eddy-Current-Based Sensing of Rotor Position for Magnetic Levitation

Principles and Test Result of Novel Full Passive Magnetic Levitation Motor with Diamagnetic Disk

Performance and Micro-Vibrations in Magnetic Bearings for Space Actuators