Automatic Measurements of Surface Resistance of Superconductors using Two Modes in a Dielectric Rod Resonator
Automatic Measurements of Surface Resistance of Superconductors using Two Modes in a Dielectric Rod Resonator
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在介质棒谐振器中使用两种模式自动测量超导体表面电阻
DOI：
10.1109/euma.1997.337876
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
H. Yoshikawa
中科院分区：
文献类型：
--
作者：
Yoshio Kobayashi;H. Yoshikawa
为了测量高温超导体表面电阻Rs随温度的变化关系，研制了一套自动测量系统，该系统利用放置在两个平行板之间的介质棒谐振器中的两个模式TE012和TE021来测量高温超导体表面电阻Rs随温度的变化关系。介质棒的相对介电常数和损耗正切除Rs外，只需测量一次这些模式的谐振频率和空载Q就可以作为T的函数来分别确定。
An automatic measurements system is developed to measure the temperature T dependence of the surface resistance Rs of high Tc superconductors, by using two resonant modes TE012 and TE021 in a dielectric rod resonator placed between these two parallel plates. The relative permitivity and loss tangent of the dielectric rod, in addition to Rs, can be determined separately from measuring the resonant frequency and unloaded Q for these modes only one time as a function of T. It is demonstrated that excellent reproducibility of measurements can be obtained.