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An apparatus for the measurement of ac losses in superconductors

โœ Scribed by M.A. Janocko; D.W. Deis

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
464 KB
Volume
14
Category
Article
ISSN
0011-2275

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โœฆ Synopsis

An apparatus is described which can measure continuous alternating current losses on superconductor samples, or other heat loads, by, the calorimetric helium boil-off technique over a range of 10 mW to 50 VV. This apparatus has a modular design and is easily constructed from commercially available components. The construction and operation of this apparatus is described in detail and typical results presented.

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โœ L. Jansak; F. Chovanec ๐Ÿ“‚ Article ๐Ÿ“… 1980 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 198 KB

A technique for measuring ac losses in superconducting magnets is described. Two signals, a compensated voltage integral across the magnet and a magnet current differential, are multiplied in a Hall probe multiplier. The result is integrated and digitally displayed. The loss per cycle in a range of