Measurement of minimum quench energy in a superconducting winding using a YAG laser

被引：0
|
作者：
Yamada, Kimio [1 ]
Aoki, Manabu [1 ]
Matsui, Yuji [1 ]
机构：
[1] Hitachi Ltd, Power & Ind Syst R&D Lab, Hitachinaka, Ibaraki 3191221, Japan
来源：
CRYOGENICS | 2008年 / 48卷 / 11-12期
关键词：
Superconductors; Composite conductors; Liquid helium; Quench; Optical technique;
D O I：
10.1016/j.cryogenics.2008.08.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Laser heating technology has been applied to evaluate the minimum energy to induce quenching in a superconducting winding. After calibration of the actual energy absorbed by the conductor, it was irradiated with YAG laser light while increasing the power step by step. The minimum quench energy (MQE) determined by an average of the absorption energies in and just before quenching was in good agreement with the calculated one. Further, reproducibility within 5% was obtained. It was concluded that the laser heating method is valid to measure MQE of the winding. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：518 / 520
页数：3
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