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Typical math waveforms

You create math waveforms when you create a math expression. You do so by applying numerical constants, math operators

and functions to operands. You can display and manipulate these derived math waveforms much like you can the channel and

reference waveforms (see Using Math Waveforms).

NOTE. Math calculations are not available on digital channels.

Some examples of typical math waveforms

To normalize this waveform:

Enter this math expression: (Ch1- Meas1)/ Meas2, where Ch1 is the waveform shown

above Meas1 = Low of Ch1 Meas2 = amplitude of Ch1

And get this math waveform:

To simulate AC coupling on this waveform:

Enter this expression: Intg(Ch1-Avg(Ch1)), where Ch1 is the waveform shown above

Avg is the average function

And get this math waveform:

Offset, position, and scale. The settings that you make for offset, scale, and position affect the math waveform you obtain. Here

are some tips for obtaining a good display:

■

Scale and position the source waveform so that it is contained on the screen. (Off-screen waveforms may be clipped,

resulting in errors in the derivative waveform.)

■

Use vertical position and vertical offset to position your source waveform. The vertical position and offset will not affect your

derivative waveform unless you position the source waveform off screen so that it is clipped.

What do you want to do next?

Learn about math waveform sources.

Go to a step-by-step procedure for creating math waveforms.

Oscilloscope reference

702 DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series

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