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Abstract--A Hall probe magnetic imaging system that works in magnetic fields in the range 1 T to 1 T has been implemented,
 

Summary: 4MD08 1
Abstract--A Hall probe magnetic imaging system that works in
magnetic fields in the range ­1 T to 1 T has been implemented,
and it has been used to characterize the superconducting
behavior of single domain melt textured YBa2Cu3O7 rings. We
show that in addition to the analysis of the evolution of the local
magnetic field distribution when the external magnetic field is
cycled, the hysteretic behavior of the magnetic moment can also
be investigated after integration of the local magnetic field. The
critical current density has been determined through the critical
state model and it has been compared to that calculated by
inversion of the Biot-Savart law. A remarkable agreement is
achieved with both methods.
Index Terms--Melt textured superconductors, Hall probes,
Critical currents
I. INTRODUCTION
HE development of non-destructive and fast testing
systems to evaluate the quality of superconducting
materials remains a general objective in the field of applied
superconductivity. Depending on the properties to be

  

Source: Amoros, Jaume - Departament de Matemàtica Aplicada I, Universitat Politècnica de Catalunya

 

Collections: Mathematics