Tektronix TBS1052C handleiding
Handleiding
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Figure 2: Triggered display
Understanding and using triggers is probably the most important skill needed to quickly display and analyze waveforms. A trigger condition
can be as simple as when the signal passes through a specified voltage level when going from a low level to a high level (positive slope). A
trigger condition can also be very specific, such as when the signal level is falling and the width of a single pulse of the signal is less than a
specified time period.
The trigger point in a waveform record also sets the zero time-reference point in a waveform record. By default, the trigger point in a
waveform record is in the center of the waveform record. This means that half of the record shows the signal waveform before the trigger
condition (pretrigger), and the other half shows the waveform after the trigger condition (post-trigger).
Pretrigger data can help you troubleshoot signal problems. For example, to find the cause of an unwanted glitch in your test circuit, trigger
on the glitch signal and look at the pretrigger waveform. By analyzing what happens before the glitch, you may uncover information that
helps you find the source of the glitch.
Trigger slope and level concepts
The oscilloscope must detect both the slope and level conditions before it can trigger and display a stable waveform.
The minimum trigger conditions needed to display a stable waveform are the signal slope and threshold level. The slope sets the
oscilloscope to find the trigger point on the rising or the falling edge of a signal. The level sets where on that edge the trigger point occurs.
The trigger Slope sets the
oscilloscope to find the trigger
event on the rising or the
falling edge of a signal.
The trigger threshold Level
(or just level) is the signal
amplitude value on a slope
that must occur for the
oscilloscope to trigger on a
signal.
Sampling oscilloscope concepts
TBS1000C Series Oscilloscopes User Manual 52
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Productinformatie
| Merk | Tektronix |
| Model | TBS1052C |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 35612 MB |