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Horizontal Setting
1)
Time/DIV: lead the setting of the time base parameters
Select the time setting for the beam to sweep one major division on the screen. By selecting different time/div
settings it is possible to zoom in on the frozen waveform on the screen.
2)
Format: lead the setting of the horizontal format parameters.
Set the waveform display format (Y-T, X-Y, Scan and Roll).
Y -T: Show the relative relation between vertical voltage and horizontal time.
X -Y: Show CH1 value at X axis; CH2 value at Y axis. The XY format is used to analyzer phase difference,
such as those represented by Lissajous patterns.
Y-T Format
Scan: In Scan Mode, the waveform display scan updates from left to right.
In Scan mode, trigger and horizontal offset control of waveforms are available during Scan Mode. This mode is
only available when set to 500ms/div or slower. Generally, used for measuring low frequency signal.
Roll: In Roll Mode, the waveform display updates from right to left.
In Roll mode, the waveform display rolls from right to left. No trigger or horizontal offset control of waveforms is
available during Roll Mode. This is only available when set to 500ms/div or slower.
Caution: If the time/div bigger than or equal to 500ms, the format will change to Roll mode automatically. If you
want to select Scan mode, please click “Setup -> Horizontal ->Scan” in main menu to set Scan mode
manually.
Change Horizontal Position
Horizontal Position icon: Drag Horizontal Position icon on screen to adjust the trigger position against screen.
Double click the icon to reset the trigger point back to the screen center.
4.7.2
Application of the X-Y Operation
X-Y Plot acts to analyze correlation of data of two channels. Lissajous diagram is displayed in the screen when you
use X-Y Plot, which enables to compare frequencies, amplitudes and phases of counterpart waveform against the
reference waveform. This makes it possible to compare and analyze frequency, amplitude and phase between input
and output.
Do these steps as follows:
1)
Set the probe attenuation to “x10”. Set the switch to “x10” on the probes.
2)
Connect the CH1 probe to the input of the circuit, and connect the CH2 probe to the output of the circuit.
3)
Click AUTO button.
4)
Adjust the vertical scale and offset to display approximately the same amplitude signals on each channel.
5)
Select X-Y format at Horizontal window. The oscilloscope will displays a Lissajous pattern representing the input
and the output characteristics of the circuit.
