【摘要】 示波器两通道输入两路信号,通道1输入未知信号,通道2输入已知信号,扫描方式选择在锁定模式,触发选择置于通道2,垂直方向显示选择通道1,调节已知信号频率,最大能使未知信号稳定下来的频率即为未知信号的频率。简化了频率测量操作,在实际应用中具有极大的参考价值。更多还原

【Abstract】 Two signals input the oscilloscope with two channels,the unknown signal inputs channel 1 and the known signal inputs channel 2.Locked mode was selected.Trigger selection was set as channel 2.By adjusting the known signal frequency, the maximum, which can make steady down the unknown signal frequency, was equal to the unknown signal frequency. This method simplifies the operation of frequency measurement, and it great reference value in practical application.更多还原