| タイトル | Design of a Superconducting Magnetic Suspension System for a Liquid Helium Flow Experiment |
| 本文（外部サイト） | http://hdl.handle.net/2060/19960052907 |
| 著者（英） | VanSciver, Steven W.; Eyssa, Yehia M.; Smith, Michael R. |
| 著者所属（英） | National High Magnetic Field Lab. |
| 発行日 | 1996-07-01 |
| 言語 | eng |
| 内容記述 | We discuss a preliminary design for a superconducting magnetic suspension system for measurement of drag on rotationally symmetric bodies in liquid helium. Superconducting materials are a natural choice for liquid helium studies, since temperatures are well below most critical temperatures, so that the resulting heat load is negligible. Also, due to its diamagnetic properties, a superconducting model (for example made or coated with Nb) is inherently stable against disturbances. Issues which we consider include model placement during initial cool-down, maintaining placement during anticipated drag and lift forces, and force measurement. This later can be achieved by a passive technique, where the body is allowed to deflect under the influence of drag from its neutral position. The resulting shift in flux is detected via a superconducting pickup coil. The pickup coil may be connected either to a SQUID, or a secondary loop wound around a Hall probe. Both options are discussed. The objective of this work is to gain a better understanding of the nature of turbulent fields in normal and superfluid helium for potential application to problems in classical high Reynolds number turbulence. |
| NASA分類 | Research and Support Facilities (Air) |
| レポートNO | 96N35900 |
| 権利 | No Copyright |
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