University of Virginia Superconducting Wind‐Tunnel Balance
作者:
R. N. Zapata,
H. M. Parker,
F. E. Moss,
I. L. Hamlet,
R. S. Kilgore,
期刊:
Journal of Applied Physics
(AIP Available online 1971)
卷期:
Volume 42,
issue 1
页码: 3-5
ISSN:0021-8979
年代: 1971
DOI:10.1063/1.1659586
出版商: AIP
数据来源: AIP
摘要:
The design of an electromagnetic balance using superconducting coils is reported. Both dc and ac coils are used to support aerodynamic models in a supersonic (Mach 3) wind tunnel and to simultaneously measure the forces acting on them along 3 orthogonal axes. Major design characteristics include: adoption of symmetrical coil arrangement to provide maximum space for the wind tunnel; 3 gradient‐coil pairs capable of being driven between 0 and 350 A at a frequency of 30 Hz by specially designed power supplies; a vertical wind tunnel with a 6‐in. test section located in the axial room‐temperature access of a 250‐liter liquid‐helium Dewar. Results on ac losses for prototype gradient coils wound of three different superconducting materials are reported.
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