Voltage spike detection in high field superconducting accelerator magnets

被引：7
|
作者：
Orris, DF [1 ]
Carcagno, R [1 ]
Feher, S [1 ]
Makulski, A [1 ]
Pischainikov, YM [1 ]
机构：
[1] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2005年 / 15卷 / 02期
关键词：
flux jump; high field; magnet; spike; superconducting;
D O I：
10.1109/TASC.2005.849532
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A measurement system for the detection of small magnetic flux changes in superconducting magnets, which are due to either mechanical motion of the conductor or flux jump, has been developed at Fermilab. These flux changes are detected as small amplitude, short duration voltage spikes, which are similar to 15 mV in magnitude and lasts for similar to 30 mu sec. The detection system combines an analog circuit for the signal conditioning of two coil segments and a fast data acquisition system for digitizing the results, performing threshold detection, and storing the resultant data. The design of the spike detection system along with the modeling results and noise analysis will be presented. Data from tests of high field Nb3Sn magnets at currents up to similar to 20 KA will also be shown.
引用
收藏
页码：1205 / 1208
页数：4
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