How do I use an oscilloscope?

February 14, 2025common problems 3400

市面上有许多品牌和类型的示波器，它们可能看起来各不相同，但大多数都有相同的基本步骤。以下是如何使用示波器的分步指南：

连接探头: 将探头连接到示波器的输入通道。确保连接牢固。如果您有衰减探头，可能需要补偿探头，直到获得完美的方波。
测试DUT: 通过将探头尖端连接到电路中的感兴趣点并将接地夹连接到DUT上的公共接地点，将探头连接到被测设备（DUT）。
调整垂直和水平刻度: 使用示波器控件调整垂直（电压）和水平（时间）刻度。这确保波形在屏幕上正确显示。
设置触发器: 使用触发设置来稳定波形。触发器有助于确保信号稳定显示。根据需要调整触发电平和类型。
解释波形: 查看屏幕上的波形。x轴代表时间，y轴代表电压。观察信号的形状、频率和幅度。
分析波形: 识别任何问题或异常。信号表现是否如预期？是否有噪声尖峰或不规则？排除检测到的任何问题，以确保信号性能准确。您可以使用示波器的功能，如游标和自动测量，来辅助分析。

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