MEASURING METHOD OF CRITICAL CURRENT DENSITY OF SUPERCONDUCTOR WIRES USING MEASUREMENT OF MAGNETIZATION LOSS

摘要

PURPOSE: A method for estimating the critical current density of superconductor wires is provided to measure the critical current density of parallel type superconductor wires without the direction application of currents to the superconductor wires. CONSTITUTION: External magnetic field is applied to superconductive wires(100). According to the application of the external magnetic field, the loss of magnetism from the superconductive wires is measured. The measured loss of the magnetism is normalized. The fully intruded magnetic field of the superconductive wires is calculated based on the normalized loss of the magnetism. The critical current density of the superconductive wires is calculated based on the fully intruded magnetic field.