... operation 2.Double work mode 3.Various test coils 4.Test: magnetic parameter, Br, Hcb, Hcj, (BH) ... max, Hk and so on DX-4DMT Automatic Hysteresis Graph Test ... NdFeB and quenched material, and gives the magnetic parameter, Br, Hcb, Hcj, (BH)max, Hk ... on, and could meet different requirements on test function, precision, power capability, reliability, efficiency ...