Test Bench for Characterization of HTS Tapes at Low Magnetic Fields Based on Additive Manufacturing

The paper focuses on the description, design, construction of a prototype and examination of the test bench for characterization of superconducting tapes operating at low magnetic fields. The test bench is based on a rotating cylinder containing permanent magnets and producing homogeneous magnetic field in the center, where a superconducting tape is located. The 3D printing additive manufacturing technology is used for construction of the test bench. Designed measuring device allows for fast and easy characterization of angular dependence of the critical current density on external magnetic field of examined tape. The test bench is dedicated to examination mostly for HTS tapes (1G tapes made as silver matrix with filaments and 2G tapes made as coated conductors), which is leading superconducting tapes technology. The description presented in the paper contain description of the idea of tool supported by FEM analysis, description of manufacturing and selected results of tests. Problem of scalability of results is also discussed in the paper.