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SHS800X&SHS1000X User Manual
49
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Horizontal Format
Press the Acquire button on the front panel; then press the XY soft key to set the
XY(On) or YT(Off) mode. The default setup is YT.
YT
It is the normal viewing mode for the oscilloscope. In the Normal time mode,
signal events occurring before the trigger are plotted to the left of the trigger
point and signal events after the trigger plotted to the right of the trigger point.
XY
XY mode changes the display from a volt- versus- time display to a volt- versus-
volt display. Channel 1 amplitude is plotted on the X- axis and Channel 2
amplitude is plotted on the Y- axis, the two channels will be turned on or off
together.
You can use XY mode to compare frequency and phase relationships between
two signals. XY mode can also be used with transducers to display strain versus
displacement, flow versus pressure, volts versus current, or voltage versus
frequency.
The phase deviation between two signals with the same frequency can be easily
measured via Lissajous method. The figure below shows the measurement
schematic diagram of the phase deviation
According to
sinθ=A/B or C/D (wherein, θ is the phase deviation angle between
the two channels and the definitions of A, B, C, and D are as shown in the figure
above), the phase deviation angle is obtained, that is: θ=±arcsin (A/B) or ±arcsin
(C/D)
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