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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ghodsi, Mojtaba
University of Portsmouth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2020Effect of damping on performance of magnetostrictive vibration energy harvester
- 2019Temperature effects on electromechanical response of deposited piezoelectric sensors used in structural health monitoring of aerospace structurescitations
- 2019Dynamic analysis and performance optimization of permendur cantilevered energy harvester
- 2017Experimental Study on the Effect of Point Angle on Force and Temperature in Ultrasonically Assisted Bone Drillingcitations
- 2016Effect of magnetic field on mechanical properties in Permendurcitations
- 2016Electrical properties of UV-irradiated thick film piezo-sensors on superalloy IN718 using photochemical metal organic depositioncitations
- 2015Thickness and thermal processing contribution on piezoelectric characteristics of Pb(Zr-Ti)O3 thick films deposited on curved IN738 using sol–gel techniquecitations
- 2011Effect of forging on ferromagnetic properties of low-carbon steelcitations
- 2006The characteristics of trapped magnetic flux inside bulk HTS in the Mixed-mu levitation systemcitations
Places of action
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article
The characteristics of trapped magnetic flux inside bulk HTS in the Mixed-mu levitation system
Abstract
In this paper we propose a new experimental method to investigate the principle of ‘Mixed-l’ levitation systems. To confirm our claim, we measured the attractive force and the variation of flux passing through both, the HTS sample and the face surface of iron yoke, when the yoke is approached/retreated to the surface of field-cooled HTS sample. It is revealed that when the diameter of the yoke is less than the diameter of the HTS, in the small gap by reducing the gap, the flux which passes through the face surface of the yoke and consequently the attractive force will decrease. Therefore, stable levitation is achievable. However, when the diameter of yoke is equal to the diameter of the HTS, the magnetic flux will not decrease for a reducing gap and stable levitation is unfeasible. Briefly, stable levitation is achievable when the yoke diameter is less than the HTS’s diameter. Additionally, as the yoke is approached to the HTS the flux variation of the HTS in 77 K is negligible compare to the flux variation of the HTS in the room temperature. Therefore, in superconductivity state the pinned fluxes in the HTS samples remain approximately constant and the HTS acts as a ‘magnetic isolator’. This specification can be used to simulate the behavior of field-cooled HTS by the FEM software.