Study of micro/nano scale displacement by electro-maglev system using bulk superconductors and permanent magnet

Po Peng Lin, Te Yan Yang, Shih Yun Chen, In Gann Chen

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

In order to control the displacement of devices within a micro/nano scale, in this study, an active-magnetic levitation (maglev) system composed of a single-grained Y-Ba-Cu-O high temperature superconductor (HTS) bulk, a rectangular Nd-Fe-B permanent magnet (PM), and a Helmholtz coil was constructed. It is well known that the magnet can be levitated stably above superconductors by the flux trapping effect. By changing the current in the Helmholtz coil, the additional magnetic field was used to adjust the levitation height of the PM. The experimental results show that a D.C. power supply with the sensibility of 10-2 ampere was able to adjust the levitation height to be accurate within a micrometer (μm) range. An optic-fiber displacement sensor was used to measure the micro/nano scale displacement. The linear relationships between applied current, field cooling height, and non-contact displacement were determined and will be discussed in this report.

原文English
頁(從 - 到)2063-2066
頁數4
期刊IEEE Transactions on Applied Superconductivity
17
發行號2
DOIs
出版狀態Published - 2007 6月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程

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