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21. 发明授权

US3956690A Trimmed superconductive magnetic pickup coil circuits 失效
标题翻译：微调超导磁感应线圈电路
公开(公告)号：US3956690A
公开(公告)日：1976-05-11
申请号：US435112
申请日：1974-01-21
申请人： Louis H. Rorden
发明人： Louis H. Rorden
IPC分类号： G01R33/025 , G01R33/035 , G05F7/00
CPC分类号： G01R33/025 , G01R33/0358 , Y10S505/87
摘要： A primary superconductive magnetic field component or gradient pickup coil circuit is trimmed by means of one or more auxiliary superconductive trim coil circuits electromagnetically coupled to a magnetic flux sensor for sensing the magnetic flux coupled to the sensor by said primary and auxiliary coil circuits. The trim coils each have their respective magnetic axes oriented orthogonally for independent adjustment of trim. An adjustable magnetic shield is provided surrounding each of the respective trim coils for varying the coupling between the respective trim coil and the magnetic field. In this manner transverse and axial balance or trimming of the primary pickup coil circuit is obtained by adjusting the positions of the respective magnetic shields around each of the respective trim coil circuits. In a preferred embodiment, there are three mutually orthogonal trim coil circuits.
摘要翻译：主要超导磁场分量或梯度拾取线圈电路通过电磁耦合到磁通量传感器的一个或多个辅助超导调节线圈电路来修整，用于感测由所述主线圈和辅助线圈电路耦合到传感器的磁通量。修整线圈各自具有正交定向的各自的磁轴，用于独立调整装饰。围绕每个相应的微调线圈设置可调节的磁屏蔽，以改变相应的微调线圈和磁场之间的耦合。以这种方式，通过调节各个调节线圈电路周围的各个磁屏蔽的位置来获得初级拾波线圈电路的横向和轴向平衡或微调。在优选实施例中，存在三个相互正交的调整线圈电路。

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