Agilent Technologies DSO-X 4022A, Руководство пользователя

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90 Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
4
Math Waveforms
press the Display Math softkey again to display the selected math
function.
3
Use the
Operator
softkey to select an operator, transform, filter, or
visualization.
For more information on the operators, see:
• "Math Operators" on page 92
• "Math Transforms" on page 94
• "Math Filters" on page 110
• "Math Visualizations" on page 112
4
Use the
Source 1
softkey to select the analog channel (or lower math
function) on which to perform math. You can rotate the Entry knob or
repetitively press the
Source 1 softkey to make your selection.
Higher math functions can operate on lower math functions when using
operators other than the simple arithmetic operations (+, - , *, /). For
example, if
Math 1 is set up as a subtract operation between channels 1
and 2, the
Math 2
function could be set up as a FFT operation on the
Math 1 function. These are called cascaded math functions.
To cascade math functions, select the lower math function using the
Source 1
softkey.
5
If you selected an arithmetic operator for the math function, use the
Source 2 softkey to select the second source for the arithmetic operation.
6 To re- size and re- position the math waveform, see "To adjust the math
waveform scale and offset" on page 91.
T I P
When cascading math functions, to get the most accurate results, be sure to vertically
scale lower math functions so that their waveforms take up the full screen without being
clipped.