The influence of circular trim coil current variation on vertical beam behaviour is also determined experimentally. 同时也测量了束流引出区环形补偿线圈中的励磁电流变化对引出束流性能的影响。
An ambient field aids the magnetization from the exciting current. 背景场加强了激励电流的磁化强度。
The curve of the relation between the amplitude of the ultrasonic wave and the excitation current of the electromagnetic field was obtained by experiments. 为此设计了确定最佳磁化强的试验方案,通过试验得到超声波幅值随电磁场激励电流的变化曲线。