GW Instek APS-1102 Control Software User Manual - Manual (Page 77)

8.2 Contraction/Extension of Waveform
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8.2.2 Contraction/extension of vertical axis
The vertical axis is contracted/extended within the selected range.
Select the range with the markers on the waveform display screen before contracting/extending the
vertical axis.
“7.5.6 Range selection”
The contraction/extension of the vertical axis is set in the [Y Axis] area on the
contraction/extension screen.
a) Performing contraction/extension by specifying the maximum/minimum
values
When (option button) at the left of [ Max/Min(M)] is selected ( ), the maximum value of
the range selected with the markers is displayed to the right of [Max] and the minimum value is
displayed to the right of [Min].
Input the maximum/minimum values of the target after contraction/extension in each display
section and press the
Enter key to change the waveform on the waveform display screen. If the
waveform is hidden behind the contraction/extension screen and difficult to see, move the screen.
The waveform can be vertically inverted by setting a value smaller than the minimum value to the
maximum value.
If the desired waveform is gained, click the
OK button.
To return to the waveform display screen without performing contraction/extension, click the
Cancel button or press the Esc key.
b) Performing contraction/extension by specifying the amplitude/offset
When (option button) at the left of [ Amplitude/Offset(O)] is selected ( ), the amplitude
value of the range selected with the markers is displayed to the right of [Amplitude(T)] and the
offset value is displayed to the right of [DC Offset(D)].
The following relationship between the amplitude/offset and the maximum/minimum values exist.
Amplitude = (maximum value  minimum value), Offset =
Maximum value = offset + (amplitude/2), Minimum value = offset  (amplitude/2)
Input the amplitude/offset value of the target after contraction/extension in each display section
and click the
OK button.
The waveform can be vertically inverted by setting a negative value to the amplitude.
c) Extending the selected range to the maximum amplitude
Click the Fit Peak-Peak button to extend the range selected with the markers to the maximum
amplitude. If the selected range offset is not 0 before extension, it changes to 0 after extension.
Click the Fit Amplitude button to extend the positive or negative peak to the maximum value
without changing the offset.
Max. value + Min. value
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