Vector-Potential Transformer With a Superconducting Secondary Coil and Superconducting Magnetic Shield
| Autor: | Kento Sugiyama, Shuzo Oshima, Masahiro Daibo, Yoichi Sasaki |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Superconductivity
Materials science 05 social sciences 050301 education Solenoid Superconducting magnetic energy storage Superconducting magnet Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Conductor law.invention Nuclear magnetic resonance Electromagnetic coil law 0103 physical sciences Electromagnetic shielding Electrical and Electronic Engineering Composite material 010306 general physics Transformer 0503 education |
| Zdroj: | IEEE Transactions on Applied Superconductivity. 26:1-4 |
| ISSN: | 1558-2515 1051-8223 |
| DOI: | 10.1109/tasc.2016.2535139 |
| Popis: | We created a complex coiled coil (vector-potential coil) to generate a curl-free vector potential. The device comprises a long flexible solenoid wound around a hollow nonmagnetic nonconducting cylinder; the entire coil has a coiled-coil structure. A straight superconducting BiSrCaCuO (BSCCO) wire was placed in the hollow cylinder at 77 K to serve as a secondary coil of a vector-potential transformer. We detected a nonmagnetic voltage induced between the ends of the secondary coil. The open-circuit voltage that was detected was the same as that of a normal conductor, i.e., a copper wire, which was also used as the secondary coil. Moreover, we replaced the hollow cylinder with a hollow superconducting BiPbSrCaCuO cylinder, which provides an ideal magnetic shielding. Even with the secondary coil inside the hollow BiPbSrCaCuO magnetic shield, the voltage induced across both BSCCO and copper secondary coils was identical to that measured when using the hollow nonmagnetic nonconducting cylinder. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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