Device for testing magnetic suspension characteristic of single high-temperature superconductor

Abstract

The invention provides a device for testing a magnetic suspension characteristic of a single high-temperature superconductor. The device is characterized by comprising a fixed bracket composed of a top plate, a base and a fixed rod, wherein the fixed bracket is vertically placed or horizontally placed, so that suspension and guide forces of the single high-temperature superconductor are conveniently tested; a through hole is formed in the middle of the top plate; a movable rod penetrates through the through hole and is driven by a servo motor to move up and down; the motion displacement of the movable rod is measured by a displacement sensor; a liquid nitrogen low-temperature container is fixedly connected onto the base; a force sensor for testing the suspension and guide forces of a suspension system is connected to a lower part of the liquid nitrogen low-temperature container; and a permanent magnet body and the displacement sensor are arranged together. Compared with the prior art, the device has the advantages that static suspension and guide forces of the system and dynamic suspension and guide forces under external magnetic disturbance can be tested on the same device, the device has diversified structural test contents and is simple in structure, small in volume and convenient to use, and defects of single test content, complex structure, complexity in operation and high cost are avoided.

Description

technical field [0001] The invention relates to the field of magnetic levitation, in particular to a device for testing the magnetic levitation characteristics of a single high-temperature superconducting block. Background technique [0002] The levitation and guidance force of the high-temperature superconducting maglev train is realized by the shielding current caused by the high-temperature superconductor in the magnetic field of the permanent magnet guide rail, and the pinning effect of the pinning center of the high-temperature superconductor on the magnetic field lines, and its levitation and guidance do not require additional control. Compared with conventional and low-temperature superconducting maglev trains, high-temperature superconducting maglev trains have the characteristics of simple structure, light weight and reliable operation. However, the dynamic stability and running stability of the high-temperature maglev train system will directly affect the safety, r...

AI Technical Summary

Problems solved by technology

At present, most of the devices for testing the levitation characteristics of a single high-temperature superconducting maglev system only test the levitation force, and there are few studies on the levitation characteristics of the system under the guidance force and external magnetic disturbance. Moreover, most of the existing devices The structure is complex and the cost is high

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