【摘要】 本文报道由感应法测量大面积高温超导膜均匀性的装置．其特点是探头可以在液氮温区进行两维移动，从而对大面积膜的不同区域进行测量以达到均匀性测量的目的．测量包括超导转变温度Ｔｃ及临界面电流密度Ｋｃ的测量．可测样品的最大尺寸是５０×５０ｍｍ２．从对该装置进行测试的实验表明；该装置可提供被测样品温度的均匀性优于０．０２Ｋ／ｃｍ，在面电流密度Ｋｃ的测量中，系统引起的相对误差小于５％．更多还原

【Abstract】 AbstractAn apparatus with inductive method has been established to detect the homogeneity of large area high-Tc superconducting films.it’s probe can be moved in two dimentions at liquid nitrogen temperature in order to test the different regions of the films.The tests include the measurement of the superconducting transition temperature Tc,and that of the critical sheet current density Kc.The maximum sample size that can be measured is 50×50mm2.It was proved from the tests of the measurements that the apparatus can provide,films being detected with temperature homogeneity better than 0.02K/cm,and causes a relative error less than 5% in the measurements of Kc.更多还原