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Operating Basics
Measurements
The digitizing oscilloscope not only displays graphs of voltage versus time, it
also can help you measure the displayed information (see Figure 2-11).
Ch 1 Period
10 ns
Automated
Measurements
Graticule
Ch 1
Frequency
100 MHz
Cursors
Cursor
Readouts
Figure 2-11: Graticule, Cursor and Automated Measurements
The oscilloscope provides three measurement classes. They are: automated,
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 mea-
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 volt-seconds) measurements. You
can select and display up to four measurements at a time. (See Table 3-5 on
page 3-86 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