Superconducting tape current uniformity testing device and calibration method

Abstract

The invention provides a superconducting tape current uniformity test device and calibration method, wherein the test device is used to test the current uniformity of the superconducting tape (4), including a critical current test frame (1), a conductive sheet (3 ) and voltage lead probes (6); the conductive sheet (3) is coated on both ends of the critical current test frame (1); the two ends of the superconducting tape (4) are respectively arranged on the current test frame (1 ) are electrically connected to the conductive sheets (3) at both ends; one end of the voltage lead probe (6) is crimped on the surface of the superconducting strip (4). The device provided by the invention has the advantages of simple structure, low cost and high test efficiency, and can easily and quickly realize the test of the critical current distribution on the short sample of the strip without destroying the superconducting strip; the method provided by the present invention is compatible with The magnetic measurement method has an excellent corresponding degree, which effectively improves the test efficiency and simplifies the time-consuming and human resource costs of the test process.

Description

technical field [0001] The invention relates to the field of superconducting technology, in particular to a testing device and a calibration method for the current uniformity of a superconducting strip. Background technique [0002] Since the first discovery of superconductivity in the laboratory by Professor Camerin Onners of Leiden University in the Netherlands in 1911, superconducting materials and their applications have been one of the most active frontier research fields in contemporary science and technology. In January 1986, scientists Bernoz and Müller, who worked in the laboratory of International Business Machines Corporation in Zurich, Switzerland, first discovered that barium lanthanum copper oxide was a high-temperature superconductor, and soon within 1-2 years, the superconductor The critical transition temperature of , has been raised above the temperature of liquid nitrogen by various research groups around the world, thus eliminating the need for expensive ...

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