72281频率模块样本率为1MS/s16位分辨率、宽频625ps、2个隔离通道、最大输入电压420V2四十二五3DC精度++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++测量参数为频度、回调、句段、值班、供电频率、距离和速度
适用于DL350、DL850序列、DL950和SL1000
频率调制通过改变波瞬时频率编码信息
频调处理用于电信、广播、计算和单处理