Calibration free method for measurement of the AC magnetization loss

被引:99
作者
Souc, J
Gömöry, F
Vojenciak, M
机构
[1] Slovak Acad Sci, Inst Elect Engn, SK-84239 Bratislava, Slovakia
[2] Univ Zilina, Dept Power Elect Syst, Zilina 01026, Slovakia
关键词
D O I
10.1088/0953-2048/18/5/003
中图分类号
O59 [应用物理学];
学科分类号
摘要
A calibration free measurement method for determination of the magnetization loss of superconducting samples exposed to the external AC magnetic field is presented. The idea is based on the measurement of the part of the power which is supplied by the AC source to the AC magnet generating the magnetic field, in which the sample is located. It uses a coil wound in parallel to the AC field magnet as the measurement coil. To achieve the necessary sensitivity, two identical systems are used, each consisting of an AC magnet and a measurement coil, one of them containing the sample and the other left empty. No measurement and/or calculation of the calibration constant is required. To confirm the suitability of this method, the loss of a Cu sample with known dissipation was measured. The applicability to the AC magnetization loss measurements of superconducting tapes is presented.
引用
收藏
页码:592 / 595
页数:4
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