Magnetic field shielding system based on closed superconducting coil group and magnetic field shielding device

A technology of superconducting coil and shielding system, applied in the field of superconducting engineering, can solve the problems of cumbersome, complex realization route of four coil processes, unfavorable engineering practice, etc., and achieves easy design, easy coil radius ratio and turns ratio, structure simple effect

Active Publication Date: 2015-02-11
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

[0004] However, the shielding device must be based on the structure of the Helmholtz coil group, which requires four coils to be connected. In addition, the process of obtaining the coil radius ratio...

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  • Magnetic field shielding system based on closed superconducting coil group and magnetic field shielding device
  • Magnetic field shielding system based on closed superconducting coil group and magnetic field shielding device
  • Magnetic field shielding system based on closed superconducting coil group and magnetic field shielding device

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Embodiment Construction

[0024] The technical solution of the present invention will be further described in detail below according to the drawings in the description and in combination with specific embodiments.

[0025] see figure 1 , figure 1 It is a schematic structural diagram of the magnetic field shielding system 100 provided in the first embodiment of the present invention. The magnetic field shielding system 100 includes a first-level superconducting coil 1 and a second-level superconducting coil 2, the first-level superconducting coil 1 and the second-level superconducting coil 2 are coaxial and coplanar, so The first-level superconducting coil 1 and the second-level superconducting coil 2 are connected in series to form a closed loop, and the inner space of the second-level superconducting coil 2 forms a shim region 12 to shield the external magnetic field.

[0026] The first-level superconducting coil 1 and the second-level superconducting coil 2 as a whole have regular geometric shapes,...

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Abstract

The invention provides a magnetic field shielding system based on a closed superconducting coil group. The system comprises a first level superconducting coil and a second level superconducting coil. The first level superconducting coil and the second level superconducting coil are coaxially arranged around the same center symmetry axis in the same plane. The first level superconducting coil and the second level superconducting coil are connected in series to form a closed loop. A uniform field is formed in the second level superconducting coil to shield an external magnetic field. The invention further provides a magnetic field shielding device. According to the magnetic field shielding system, the technological realization line is simple, and the engineering practice is facilitated.

Description

technical field [0001] The invention belongs to the field of superconducting electrical engineering, in particular to a passive offsetting magnetic field shielding system based on a closed superconducting coil group and its application. Background technique [0002] Magnetic field shielding is a common support technology for many precision sciences, and it is widely cited in some extreme measurement environments: such as high-precision atomic clock electron beam imaging devices, mass spectrometers, and neutrino detection. In addition to these extreme measurement applications, the measurement technology that is closest to daily life and brings benefits to human health is biomagnetic measurement. Magnetic heart and brain magnetometry have begun to gradually move from the laboratory to the clinic. With the increasingly complex electromagnetic environment, magnetic shielding technology plays an important role in the field of biomagnetic measurement technology. In biomagnetic m...

Claims

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Application Information

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IPC IPC(8): H05K9/00
Inventor 顾晨陈思维瞿体明韩征和
Owner TSINGHUA UNIV
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