The dynamic strain characteristics and responses of a low-temperature superconducting (LTS) magnet during excitation and a quench are investigated in the present work. For the strain measurements, strain gauges in the form of a half-bridge circuit comprising cryogenic strain gauges and their dummy resistances are embedded directly within the superconducting magnet structure. A wireless high-speed data acquisition system with a resolution of 1 ms is also used to obtain the strain history of the LTS magnet during operation. The dynamic strain induced by thermal or mechanical disturbances is detected promptly and compared with the transport current and temperature signals recorded during a quench. This indicates that the dynamic strain measured in the LTS magnet can capture a quench feature in a timely manner. For a better understanding of the dynamic strain histories in the magnet, the dynamic strain signals are subjected to spectral analysis during the excitation and pre- and pos...

中文翻译：

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LTS六极磁体在激励和淬火过程中基于动态应变的淬火检测方法

在本工作中研究了低温超导（LTS）磁体在励磁和淬火过程中的动态应变特性和响应。为了进行应变测量，将包括低温应变仪的半桥电路形式的应变仪及其虚拟电阻直接嵌入超导磁体结构中。还使用分辨率为1 ms的无线高速数据采集系统来获取LTS磁体在运行过程中的应变历史。立即检测由热或机械干扰引起的动态应变，并将其与淬火期间记录的传输电流和温度信号进行比较。这表明在LTS磁体中测得的动态应变可以及时捕获失超特征。