The timebase is the amount of time each division represents. The trigger control is used to set when the waveform should appear on the screen. The knob should be turned until the waveform is clearly visible. The focus control adjusts the clarity of the waveform. The knob should be turned until the waveform moves across the screen at a comfortable speed. The horizontal sweep is the speed at which the waveform moves across the screen. The further to the left the knob is turned, the larger the time scale. The horizontal position control determines how far across the screen the waveform appears. The further the knob is turned to the right, the larger the amplitude. The amplitude of the waveform (height of the wave) is controlled by the vertical position knob. This mode is useful for measuring transient signals, such as sharp voltage spikes. Streaming mode captures the waveform over time, which allows you to see how it changes over time.This mode is useful for measuring repetitive signals, such as pulses or waveform patterns. Repetitive or triggered mode is similar to single-shot mode, but it captures multiple waveform snapshots.Single-shot mode is the simplest mode, and it captures a single snapshot of the waveform.The most common modes are single-shot, repetitive or triggered, and streaming: To learn more about digital oscilloscopes and their uses, visit Oscilloscope Basics.Īnalog oscilloscopes come with various acquisition modes, which determine the speed and resolution of the waveforms that are displayed. Converts the original analog signal to a digital one using an analog-to-digital converter.Can be connected to computers for data analysis.Typically provide a more accurate representation of the voltage signal.Consist of vertical and horizontal channels, a trigger system, a time base, and a CRT moduleĭigital oscilloscopes (AKA DSO or Digital Storage Oscilloscope):.Use a Cathode Ray Tube (CRT) * to display the signal.Typically have a slower response time than digital oscilloscopes.Are less expensive than digital oscilloscopes.Have a larger screen than digital oscilloscopes.Types of Oscilloscopes – Analog and DigitalĪnalog oscilloscopes (AKA CRO or Cathode-Ray Oscilloscope):
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