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介绍一种在微弱信号数据采集系统中消除50Hz干扰的有效方法，并给出计算机模拟结果，此法成功地应用于我们所研制的瞬变电磁仪中，作为一种低成本的软、硬件相结合的方法，效果良好。
An effective method to eliminate 50Hz interference in weak signal data acquisition system is introduced and the computer simulation results are given. This method has been successfully applied to the transient electromagnetic instrument we have developed as a low-cost software and hardware phase Combination of methods, the effect is good.