1-17
1
IM 701830-01E
Functions
X-Y Waveform Display
≡
Page 8-10.
≡
This feature plots the voltage values of one input waveform (on the X axis) against the voltage
values of the others (on the Y axis, which have their display turned ON). The X-Y plot lets you
view the relationship between the signal voltages. The X-Y waveforms and normal waveforms
(a waveform displayed using voltage and time axes) can be displayed simultaneously.
Use of this X-Y waveform display function enables measurement of the phase angle between
two sine wave signals. For example, two X-Y sine waveforms are displayed to obtain an X-Y
waveform (called a Lissajous waveform), from which the phase angle can be obtained.
Phase
angle 0
°
Phase
angle 45
°
Phase
angle 90
°
Frequency
ratio
(X:Y)
1:1
1:2
1:3
Lissajous waveform
Expanded Waveform
≡
Page 8-12.
≡
The displayed waveform can be enlarged in the time axis direction. This function is useful
when the acquisition time of the waveform is set long and you wish to observe the details of a
section of the waveform, or when you wish to change the time axis setting after displaying the
waveform with Single Start/Log Start methods (refer to page 4-6).
Zooming is not available on areas with less than 11 data points.
You set the zoom position according to it's time-axis location.
Zoom display arrangement
You can display one or two zoom windows on the screen. Four display arrangements are
available, as follows.
Main
: Main area
Z1, Z2 : Zoom area
<Main>
<Z1> or <Z2>
<Main>
<Z2>
<Z1>
<Z1>
<Z2>
<Z1>
or <Z2>
If you display the “main” area (normal waveform display) together with one or both zoom
windows, the main area will include vertical lines (or “zoom boxes”) indicating the zoom
area(s). The center of the zoom area corresponds to the center of the zoom box.
Main waveform
area
Z1 waveform
area
Z2 waveform
area
Z2 Box
Z1 Box
1.4 Setting the Acquisition and Display Conditions
