Tektronix TBS2072, Руководство пользователя

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Analyzing a waveform
Analyzing a waveform
After having properly set up the acquisition, triggering, and display of your waveform, you can then analyze the results.
Select from features such as displaying automatic measurements, using cursors to measure speci
fi c parts of a waveform,
using math to perform an operation on two waveforms, and using FFT to display the frequency components of a signal. You
can also use
Gating to analyze only a speci fi ed part of a waveform when you take measurements. (See page 55, Taking a
measurement on just a part of the waveform (Gating) .)
Taking automatic measurements
Automatic measurements are a way to quickly take common measurements on a waveform, such as signal frequency,
period, rise and fall times, and so on. You can take up to a total of six measurements at once, on any combination of input
channels and a math waveform. The measurements are shown on the main screen in the order they were selected.
To take an automatic measurement:
1. Acquire and display a triggered waveform.
2. Push Measure .
3. Push the side-menu button to select the
channel on which to take measurements.
4. Use the Multipurpose knob to select and click a measurement. (See page 52, Automatic measurement descriptions .)
The Measurement Selection bar at the top of the screen updates to show that a measurement was selected for that
channel (indicated by color), up to a maximum of six measurements total to display.
5. Measurements with a down triangle contain a list of the input channels to use for that measurement when selected. Select
and click the input channels. Then push the
Menu On/Off button to close the list.
6. To unselect a measurement, highlight that measurement and click the Multipurpose knob. To deselect a measurement for
a different channel than the current channel, push the side-menu button for the channel of the measurement, then use the
knob to select and click the measurement to remove it.
7. To unselect all measurements, push the Remove All Measurements side-menu button.
8. To close the measurement menu and show
the selected measurements on the screen,
push the
Menu On/Off button.
Measurements are shown on the screen.
Pushing the
Menu On/Off button also turns
on or off showing the measurements on the
screen.
50 TBS2000 Series User Manual