The maximum of B along elevation direction is closely under the central section of coil.The B of equiamplitude magnetic field is increased by increasing of the output current ...

等幅高频磁场的磁感应强度随高频流的增加而增加,磁场调幅处理能提高磁场内的磁感应强度,提高调幅波信号的幅值压,可有效提高磁场内的磁感应强度。