Compensation coil device for high temperature superconductive magnet test

Abstract

The invention discloses a supplementary coil device of high-temperature superconductive magnet detection, which is composed of outer coil [1], inner coil [2] and auxiliary element, wherein the outer coil [1] is main coil with little number of turn and inductance L1, whose thruflow ability is more than marginal current of detected high-temperature superconductive magnet [14]; the inner coil [2] is auxiliary coil with much number of turn and inductance L2 to be located in the center hole of main coil [1] through lower fixing rod [7] and upper fixing rod [8], which limits upper fixing rod [8] and lower fixing rod [7] on the intersecting line of main coil [1] and auxiliary [2] through limit bearing [9 and 10]; the upper fixing rod [8], lower fixing rod [7] and auxiliary coil [2] form an integral; the adjusting handle on the upper fixing rod [8] is rotated to anchor auxiliary [2] to rotate within +-180 deg scale continuously; multiple taps are led out among auxiliary coil [2]. The invention is fit for detecting high-temperature superconductive magnet and marginal current of strip and AC consumption properties, which is also fit for detecting low-temperature superconductive magnet and marginal current of strip and AC consumption properties.

Description

technical field [0001] The invention relates to a compensating coil device for testing high-temperature superconducting magnets. Background technique [0002] High-temperature superconducting magnets have the advantages of high stability, high current density and low operating cost, and have broad prospects in applications such as superconducting power. Accurate and convenient testing of various properties of high-temperature superconducting magnets is one of the key technologies in the development of high-temperature superconducting magnets. [0003] The inductance L of the high-temperature superconducting magnet is relatively large. When the magnet is excited rapidly or operates under AC conditions, there is a high induced voltage noise at both ends of the magnet: U L =Ldi / dt (1) [0004] When the high-temperature superconducting magnet is in the superconducting state, the equivalent resistance caused by AC loss is very small. According to the different excitation speed ...

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Problems solved by technology

[0005] In order to overcome the above defects of inconvenient testing in the prior art, the present invention provides a compensating coil device for testing high temperature superconducting magnets

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