Measuring Time With The Graticule Or Cursors; Figure 3-34: Measuring Dc Levels With Cursors - Tektronix 2221A User Manual

2221A User Manual
Using the Oscilloscope as a Digital Voltmeter
enced cursors, you can also use the oscilloscope as a digital voltmeter for
measuring ordinary DC voltages (Figure 3-34),
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Figure 3-34: Measuring DC Levels with Cursors

Measuring Time with the Graticule or Cursors

Make period or other time measurements between two points on a wave­
form using this basic procedure:
□ Step 1: Display the signal on screen so that the first point you wish to
measure from is on screen,
l~~l Step 2: In NON-STORE mode adjust the time base to place the other
horizontal point on screen and use the graticule lines to make the mea­
surement — or go to STORE mode and use the rest of this procedure.
n Step 3: In STORE mode, position a cursor on the first point of the
waveform with the cursor control.
1 ~ ~ 1 Step 4: Push the CURSORS knob in to select the other cursor and
position it on the second point. (On 4K or magnified displays an acquisi­
tion window indicator at the top of the display shows where the cursors
are relative to the entire record length.)
n Step 5: Note the A time (change or difference in time) readout in the
upper right corner of the display.
T R T = a : 1 7 , 5
: = M 9 i) L
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AV k/V'AWv'Wvvvv A W W
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Measuring Signals
— With ground-refer­
3-35