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1.发明授权
公开(公告)号：US5039944A
公开(公告)日：1991-08-13
申请号：US437578
申请日：1989-11-17
申请人： Boris F. Kim , Joseph Bohandy , Frank J. Adrian , Kishin Moorjani
发明人： Boris F. Kim , Joseph Bohandy , Frank J. Adrian , Kishin Moorjani
IPC分类号： G01R33/035 , G01R33/60
CPC分类号： G01R33/60 , G01R33/0352 , Y10S505/726 , Y10S505/727 , Y10S505/782 , Y10S505/845
摘要： The invention relates to an apparatus and method to detect a magnetic field by measuring the magnetically modulated resistance of a superconductor maintained at its phase transition temperature (T.sub.c).
摘要翻译： 本发明涉及一种通过测量保持在其相变温度（Tc）的超导体的磁调制电阻来检测磁场的装置和方法。
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公开(公告)号：US5059891A
公开(公告)日：1991-10-22
申请号：US458066
申请日：1989-12-28
CPC分类号： G01R33/1238 , G01N27/041 , Y10S505/843
摘要： Weak links in superconductors are detected by observing the effect of magnetic field modulation on the microwave resistance of superconductors. The phase detected response to the magnetic modulation can show a peak at T.sub.c. The presence of peak(s) at temperatures below T.sub.c indicates the presence of weak links in the superconductor.
摘要翻译： 通过观察磁场调制对超导体的微波电阻的影响来检测超导体中的弱连接。 相位检测对磁调制的响应可以在Tc处显示峰值。 在低于Tc的温度下存在峰值表示超导体中存在弱连接。
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3.发明授权Method for detection of weak links in the current path of electrically continuous superconductors 失效用于检测电连续超导体电流路径中弱连接的方法
公开(公告)号：US4904929A
公开(公告)日：1990-02-27
申请号：US325823
申请日：1989-03-20
CPC分类号： G01N27/041 , G01R33/1238 , Y10S505/843
摘要： Weak links in electrically continuous superconductors are detected by observing the effect of magnetic field modulation on the dc resistance of superconductors. The phase detected response to the magnetic modulation shows a peak at T.sub.c. The presence of a second peak at temperatures below T.sub.c, and concomitantly the appearance of a tail on the low temperature end of the dc resistance vs temperature curve indicates the presence of weak links in the superconductor.
摘要翻译： 通过观察磁场调制对超导体的直流电阻的影响来检测电连续超导体中的弱连接。 相位检测对磁调制的响应在Tc处显示峰值。 在温度低于Tc的情况下存在第二个峰，同时伴随着直流电阻与温度曲线的低温端的尾部出现，表明在超导体中存在弱连接。
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4.发明授权Novel technique using magnetic field dependent phase detection for detection of superconductivity 失效使用磁场依赖相位检测的新型技术用于检测超导性
公开(公告)号：US4851762A
公开(公告)日：1989-07-25
申请号：US238682
申请日：1988-08-31
申请人： Boris F. Kim , Joseph Bohandy , Kishin Moorjani , Frank J. Adrain
发明人： Boris F. Kim , Joseph Bohandy , Kishin Moorjani , Frank J. Adrain
IPC分类号： G01N27/04
CPC分类号： G01N27/041 , Y10S505/843
摘要： The invention relates to a method and apparatus to detect the superconductive state by measuring the change in the resistance of a sample. A dc magnetic field is imposed on the sample while the temperature is swept. The strength of the magnetic field is held below the critical value and is frequency modulated by the application of an ac field in such a way that total magnetic field is always positive. The resistance of the sample is measured incrementally as the temperature is swept and is phase detected at the modulation frequency. According to this embodiment, only magnetic field dependent changes demonstrating a precipitous drop in resistance identify a composition as superconductive.
摘要翻译： 本发明涉及通过测量样品电阻的变化来检测超导状态的方法和装置。 当扫描温度时，对样品施加直流磁场。 磁场的强度保持在临界值以下，并且通过施加ac场来使得总磁场总是为正的方式进行频率调制。 当温度被扫描并且在调制频率下被相位检测时，样品的电阻被递增地测量。 根据本实施例，只有磁场相关的变化表明电阻的急剧下降将组成识别为超导。
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