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Operating Basics
2Ć26
Measurements
The digitizing oscilloscope not only displays graphs of voltage versus time, it
also can help you measure the displayed information (see Figure 2Ć8).
Ch 1 Period
10Ăns
Automated
Measurements
Graticule
Ch 1
Frequency
100ĂMHz
Cursors
D: 64.0ĂmV
@: 32.0ĂmV
Cursor
Readouts
Figure 2Ć8:ăGraticule, Cursor and Automated Measurements
The oscilloscope provides three measurement classes. They are: autoĆ
mated, cursors, and graticule measurements.
Automated Measurements
You make automated measurements merely by pressing a few buttons. The
digitizing oscilloscope does all the calculating for you. Because these meaĆ
surements use the waveform record points, automated measurements are
more accurate than cursor or graticule measurements.
Press the MEASURE button for the automated measurement menus. These
menus let you make amplitude (typically in volts; sometimes in %), time
(typically in seconds or hertz), and area (in voltĆseconds) measurements.
You can select and display up to four measurements at a time. (See
Table 3Ć4 on page 3Ć83 for a list of all the automatic measurements and their
definitions.)
You can make automated measurements on the entire waveform record or
just on a specific part. The gating selection in the Measurement menu lets
you use the vertical cursors to limit the measurement to a section of the
waveform record.
Measurement
Sources