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What is trigger on oscilloscope?

An oscilloscope’s trigger function synchronizes the horizontal sweep at the correct point of the signal. This is essential for clear signal characterization. Trigger controls allow you to stabilize repetitive waveforms and capture single-shot waveforms.

What is external trigger in oscilloscope?

External trigger signal is a synchronizing pulse which is external relatively to the measuring device (oscilloscope, generator, logic analyzer etc.) and it usually synchronizes with the system under test.

What is pulse width triggering?

Pulse width trigger allows triggering on positive or negative pulses shorter or longer than a specified time. To trigger on a pulse, the scope uses two levels to determine the flanks of the pulse the same way as rising and falling edge triggers.

Why is trigger necessary?

Because a trigger resides in the database and anyone who has the required privilege can use it, a trigger lets you write a set of SQL statements that multiple applications can use. It lets you avoid redundant code when multiple programs need to perform the same database operation.

What is external triggering?

An external trigger functions the same as any other trigger, such as those in WaveForms’ Scope instrument. However, an external trigger uses a signal external to the acquisition tool to generate a trigger.

How does oscilloscope measure pulse width?

To measure

  1. Select Oscilloscope Mode.
  2. Click the toolbar’s Time tab.
  3. Click the toolbar’s More buttons to locate the + Pulse Width button.
  4. Click the button.
  5. If measurement regions are enabled, the Select Measurement Region, Setting dialog box is displayed.

What is pulse width oscilloscope?

Pulse width is the amount of time the pulse takes to go from low to high and back to low again. By convention, the pulse width is measured at 50% of full voltage.