... curves in different temperature of ferrite, AlNiCo, SmCo, NdFeB and quenched material, and gives the magnetic parameter, Br, Hcb, Hcj, ( ... BH)max, Hk and so on, and could meet different requirements on test function, precision, power ... supply: the maximum output power is 100KW, with perfect protection technology and intellectual control Testing electro-magnet Hysteresigraph