10-13
IM 701210-06E
Waveform Computation
10
Explanation
The phase of CH1 to CH16, DSP1 to DSP6 (optional), and Math1 to Math7 waveforms
can be displayed with the phase shifted. Computation can also be performed on phase-
shifted waveforms.
Setting the Computation Range: Start Point/End Point
By default, the measurement range is ±5 divisions of the display frame on the time axis.
You can limit this range.
The concept of the computation range is analogous to the concept of the selectable
range of cursor display position in cursor measurement.
For details, see section 11.5, “Selectable Range of Cursor Position.”
Allowable Shift Range
The phase can be shifted in the following range.
• When the Time Base Is Set to Internal Clock
Selectable range: Time value of –(record length/2) to (record length/2)
Resolution: 1/sample rate
The sample rate varies depending on the record length or T/div setting. For details,
see appendix 1, "Relationship between the Time Axis Setting, Sample Rate and
Record Length."
• When the Time Base Is Set to External Clock
Selectable range: –(record length/2) to (record length/2)
Resolution: 1
When a Waveform That Results by Offsetting the CH1 Waveform by 5 ms Is Set to
Math1
• Phase Shift CH1: 5 ms
• Math1 Operation: Shift (S1)
Source1: CH1
5 ms
Linear Scaling
When performing computation on a channel that has linear scaling set, the computation
is performed on the scaled value.
Notes when Performing Computation
Computation is not performed again when you change Start Point or End Point while
computation is stopped. Be sure to press the Exec soft key to perform the computation
again. Otherwise, the waveform will not be displayed correctly when the screen is redrawn.
Note
While computation is in execution, is displayed at the upper left corner of the screen.
10.4 Phase-Shifted Display
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