Superconducting line axial strain critical performance testing device

Abstract

The invention discloses a superconducting line axial strain critical performance testing device which comprises a drive rod, two current leads and a lower-end measuring module; the lower-end measuringmodule comprises a U-shaped spring mounted at the end part of the drive rod and is mounted at the lower end of the drive rod, levers are respectively connected with the lower end parts on the two sides of the U-shaped spring, the lower end parts of the levers are connected with the driving end of a worm-and-gear device, a to-be-tested superconducting line is fixed on the upper end plane of the U-shaped spring in a tin welding manner, the two ends of the to-be-tested superconducting line pass by the U-shaped spring and are connected with the lower end parts of the two current leads, and a measuring lead interface is formed in the upper end part of the drive rod. The superconducting line axial strain critical performance testing device disclosed by the invention has the advantages that positive and negative axial strain can be simply and effectively applied to a superconducting line sample, the strain change resolution is high, and in the critical current testing process, the strain isstale; the design of a sample strain loading structure is novel, the contact is reliable at a low temperature, large current can be introduced, the measuring precision is high, the operation is simpleand easy during the sample replacement, and the superconducting line cannot be damaged.

Description

Technical field: [0001] The invention relates to the field of performance testing of superconducting wires, and mainly relates to a device for testing the axial strain critical performance of superconducting wires. Background technique: [0002] As a kind of clean energy, fusion energy is one of the dream energy of human beings. The tokamak type magnetic confinement nuclear fusion device is a reliable device for generating fusion energy. The full superconducting tokamak is an important guarantee for the continuous operation of the fusion reactor. On the basis of the successful establishment and operation of the all-superconducting non-circular cross-section Tokamak EAST, China is actively carrying out the construction of the International Thermonuclear Experimental Reactor ITER. At the same time, various countries have also started pre-research work on the next generation of fusion reactors. The superconducting cable is an important part of the tokamak device, and its techn...

AI Technical Summary

Problems solved by technology

[0011] 1. The strain in the area where the sample is located must be uniform;

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