A sensor configuration for a 304 SQUID vector magnetometer.
A sensor configuration for a 304 SQUID vector magnetometer.
复制标题
304 SQUID 矢量磁力计的传感器配置。
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
H. Koch
中科院分区：
文献类型：
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作者：
A. Schnabel;M. Burghoff;S. Hartwig;F. Petsche;U. Steinhoff;D. Drung;H. Koch
本文介绍了一种专门为PTB BMSR-2强磁屏蔽室设计的新型SQUID矢量磁强计系统。该系统被安置在一个平底的杜瓦瓶中，内径为1.250 mm。SQUID的布置使得除了通常测量的磁场Z分量外，还可以测量水平磁场。总共304个DC-SQUID磁强计被分成19个相同的模块。每个模块的16个低Tc SQUID以这样的方式定位，即在模块内的三个点处可以估计所有三维中的磁场。所有模块的最低Z平面的57个SQUID形成一个基长为29 mm的六边形网格。解释了复杂SQUID布置背后的设计标准和物理原理。
A novel SQUID vector magnetometer system is introduced which has been specially designed for the use inside the strongly magnetically shielded room BMSR-2 of PTB. The system is housed in a dewar with a flat bottom and an inner diameter of Ø 250 mm. The SQUIDs are arranged so that in addition to the usually measured Z-component of the field the horizontal magnetic fields are measured too. A total of 304 DC-SQUID magnetometers are divided up into 19 identical modules. The 16 low-Tc SQUIDs of each module are located in such a way that an estimation of the magnetic field in all three dimensions is possible at three points inside the module. The 57 SQUIDs of the lowest Z plane of all modules form a hexagonal grid with a base length of 29 mm. The design criteria and the physical principle behind the complex SQUID arrangement are explained.