Determination of the Complete Penetration Magnetic Field of a HTS Pellet From the Measurements of the Magnetic Field at Its Top-Center Surface

In previous papers, a new method to characterize HTS pellets has been presented. This method is based on the measurement of their complete penetration magnetic flux density B
_P
. It allows determining the critical current density J
_C
and the n-value of the classical power law model. In this paper, a method of determination of B
_P
of a unique HTS pellet from the measurements of the magnetic field at its top-center surface is presented. This is a simpler and cheaper method than previous methods. It uses analytical calculation based on the Biot and Savard law and numerical calculation based on power law. The maximum magnetic flux density produced by the SC pellet B
_ZSC
M is deduced from the measurement. B
_P
is deduced from B
_ZSCM
multiplying it by a coefficient analytically calculated. The influence of J
_C
(B) on this method is presented and analyzed.