Robot-based NDE system using movable HTS-SQUID magnetometer covered with HTS film for use in unshielded environment
Robot-based NDE system using movable HTS-SQUID magnetometer covered with HTS film for use in unshielded environment
复制标题
基于机器人的 NDE 系统，使用覆盖 HTS 薄膜的可移动 HTS-SQUID 磁力计，用于非屏蔽环境
DOI：
10.1109/tasc.2014.2362847
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
S. Tanaka
中科院分区：
文献类型：
--
作者：
Y. Hatsukade;K. Yoshida;T. Kage;T. Suzuki;S. Tanaka
针对非屏蔽环境下基于移动机器人的无损检测系统，我们利用双晶SrTiO_3衬底、单层YBa2Cu3O_(7-x)薄膜和倒装芯片技术研制了一种健壮的高温超导SQUID磁强计。通过用倒装芯片配置的另一种十字形高温超导薄膜覆盖SQUID磁强计，并在磁强计和高温超导薄膜中引入网格结构，实现了在非屏蔽环境中的稳健性。在直流场和交流场中测量了SQUID参数，如临界电流2Ic、电阻Rn/2、调制电压深度Vpp和磁通噪声SΦ1/2。SQUID磁强计在非屏蔽环境中旋转，并由机械臂移动，采用主动磁屏蔽技术，在20 mm/S的速度下稳定运行。
We developed a robust HTS-SQUID magnetometer utilizing bicrystal SrTiO3substrates, single-layer YBa2Cu3O7-xfilms and flip-chip technique, aiming for movable robot-based NDE system in unshielded environment. Robustness in the unshielded environment was achieved by coverage of the SQUID magnetometer with another cross-shaped HTS film in flip-chip configuration, and introduction of mesh structure in both the magnetometer and the HTS film. SQUID parameters, such as critical current 2Ic, resistance Rn/2, modulation voltage depth Vpp, and flux noise SΦ1/2, were measured in DC and AC fields. The SQUID magnetometer was rotated in unshielded environment, and moved by a robot arm, resulting in stable operation during the motion at 20 mm/s with active magnetic shielding technique.