| 摘要 |
PROBLEM TO BE SOLVED: To provide a critical current measuring device for a superconductive wire material that can measure Ic of the superconductive wire material more stably than conventionally by sufficiently preventing a vicious cycle in which generation of resistance, a rise in temperature, and a decrease in Ic occur one after another resulting in fusion of the superconductive wire material due to the vicious cycle, etc., when measuring the Ic of the superconductive material by a four-terminal method.SOLUTION: A critical current measuring device for a superconductive wire material includes a pair of voltage electrodes for measuring a voltage of the superconductive wire material and a pair of current electrodes provided outside the pair of voltage electrodes so as to supply a current to the superconductive wire material, and the current electrodes solve a contact defect caused by a projection part formed on the superconductive wire material. The critical current measuring device for a superconductive wire material measures a critical current of the superconductive wire material in a four-terminal method.SELECTED DRAWING: Figure 1 |
