Resumen
Procedure for measuring magnetic parameters and temporal harmonics both in phase and quadrature of the magnetic moment of small samples excited with alternating or continuous magnetic fields. The procedure allows to characterize magnetic materials by applying alternating magnetic fields in a wide range of frequencies using a mechanical resonant system. The characterization is made with magnetic fields created with alternating currents, which allows a great variety of measurements. An alternate field gradient susceptometer is defined that can work with exciter fields of any frequency. To this end, the device consists of a ferrite electromagnet (11) capable of generating both continuous and alternating fields of the order of 0.3 t, a mechanical oscillating micro-tongue resonant system (2), a detection system (4) of position of the resonant system and spools of copper wire (6), capable of generating an alternating magnetic field gradient. (Machine-translation by Google Translate, not legally binding)