Waveform Integration
3–136
TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual
Source Waveform
Integral Math Waveform
Figure 3–75: Integral Math Waveform
Once you have displayed your integrated math waveform, use cursors to measure
its voltage over time:
1. Be sure MORE is selected (illuminated) in the channel selection buttons and
that the integrated math waveform is selected in the More main menu.
2. Press CURSOR
➞ Mode (main) ➞ Independent (side) ➞ Func-
tion
(main) ➞ H Bars (side).
3. Use the general purpose knob to align the selected cursor (solid) to the top
(or to any amplitude level you choose).
4. Press SELECT to select the other cursor.
5. Use the general purpose knob to align the selected cursor (to the bottom (or
to any amplitude level you choose).
6. Read the integrated voltage over time between the cursors in volt-seconds
from the : readout. Read the integrated voltage (vertical units) over time
between the selected cursor and the reference indicator of the math waveform
from the @: readout. See Figure 3–76.
Cursor Measurements of
an Integral Waveform
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