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@ARTICLE{Xu:888361,
      author       = {Xu, Jie and Benden, Christian and Zhang, Yi and Li, Jie and
                      Krause, Hans-Joachim},
      title        = {{H}armonic {A}nalysis of {H}igh-{T}c {R}f {SQUID} to
                      {D}etermine the {O}ptimum {W}orking {C}ondition for {I}ts
                      {A}utomatic {A}pplication},
      journal      = {IEEE transactions on applied superconductivity},
      volume       = {30},
      number       = {8},
      issn         = {1051-8223},
      address      = {New York, NY},
      publisher    = {IEEE},
      reportid     = {FZJ-2020-04867},
      pages        = {1601406},
      year         = {2020},
      abstract     = {High-Tc radio-frequency (rf) SQUIDs are well researched and
                      have been utilized in a range of applications. The rf SQUID
                      operating in a nonhysteretic mode has been elaborated
                      theoretically in a few of literatures, among which an
                      effective method of harmonic analysis was presented to find
                      its optimum working point. A suitable flux-to-voltage curve
                      of the rf SQUID should be acquired before applying the
                      harmonic analysis method, but the approach of getting the
                      suitable curve is unclear. This article carried out an
                      analysis with respect to the three harmonics, which
                      primarily affect the waveform of flux-to-voltage curves and
                      came to the condition, which need be satisfied to acquire
                      the desirable kind of curves. In which, the one with the
                      largest value of its maximum transfer function could be
                      considered as working in the optimum condition. Three rf
                      SQUIDs were employed in experiment to demonstrate the
                      detailed procedure of determining their optimum working
                      conditions, which were the rf frequencies and the attenuator
                      voltages of their tank circuits. Judging from the
                      experimental results, the method proposed in this article is
                      very effective, the optimum working conditions of the three
                      rf SQUIDs can be accurately obtained. The findings would be
                      instructional for automatically setting the working
                      conditions of high-Tc rf SQUIDs in practical applications.},
      cin          = {IBI-3},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IBI-3-20200312},
      pnm          = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000578800500001},
      doi          = {10.1109/TASC.2020.3024209},
      url          = {https://juser.fz-juelich.de/record/888361},
}