Superconducting magnet for measuring comprehensive physical properties of low-temperature high-intensity magnetic field and design method thereof

Abstract

The invention relates to a superconducting magnet for measuring comprehensive physical properties in a low-temperature high-intensity magnetic field and a design method thereof, the superconducting magnet comprises four groups of coils, three groups of coils are main coils, one group of coils is compensation coils, and all the coils are nested together, coaxial and concentric. From inside to outside, the first two sets of coils are main coils, the third set of coils are compensation coils, and the fourth set of coils are main coils, namely the compensation coils are located on the inner side of the first set of main coils. In order to optimize and adjust the safety margin of the coils, each group of coils adopts different lead specifications to realize radial current density grading, that is, each group of coils comprises a plurality of sub-coils, and the current density grading mode is not only applied to the main coil, but also applied to the compensation coil. The invention provides a compensation coil radial current density grading optimization method based on a target field method, provides a compensation coil layering design rule, and is applied to the design of a superconducting magnet for low-temperature strong magnetic field comprehensive physical property measurement.

Description

technical field [0001] The invention belongs to the field of superconducting strong magnetic fields, and in particular relates to a superconducting magnet coil structure for comprehensive physical property measurement of low-temperature strong magnetic fields and a design method thereof. Background technique [0002] The low temperature and strong magnetic field comprehensive physical property measuring instrument is an indispensable key instrument for the measurement of the electrical, magnetic, thermal and other physical properties of micro-nano devices and new materials in the fields of materials science, physics, chemistry and other fields. The basic measurement platform of the low temperature and strong magnetic field comprehensive physical property measurement equipment is a set of strong magnetic field superconducting magnet system, which provides the instrument with a variable magnetic field environment for measurement, which meets the performance parameter measuremen...

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Problems solved by technology

[0004] The invention aims to solve the problem that the radial current density classification cannot be realized by using a single specification wire and the safety margin of the wire cannot be optimized when the superconducting magnet is designed by the compensation method

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