SIG
L
ENT
46
SDS1000X User Manual
Change the 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(Off)
.
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
sin
θ
=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)
If the principal axis of the ellipse is within quadrant I and III, the phase deviation angle
obtained should be within quadrant I and IV, namely within (0 to π/2) or (3π/2 to 2π). If the
principal axis of the ellipse is within quadrant II and IV, the phase deviation angle obtained
should be within quadrant II and III, namely within (π/2 to π) or (π to 3π/2).
X-Y function can be used to measure the phase deviation occurred when the signal under
test passes through a circuit network. Connect the oscilloscope to the circuit to monitor the
input and output signals of the circuit.
www.biall.com.pl
Summary of Contents for SDS1102X
Page 2: ...www biall com pl...
Page 19: ...SIGLENT SDS1000X User Manual XVII www biall com pl...
Page 20: ...www biall com pl...
Page 89: ...SIGLENT SDS1000X User Manual 69 Figure 28 Relative Window Trigger www biall com pl...
Page 91: ...SIGLENT SDS1000X User Manual 71 Figure 29 Interval Trigger www biall com pl...
Page 95: ...SIGLENT SDS1000X User Manual 75 Figure 32 Runt Trigger www biall com pl...
Page 109: ...SIGLENT SDS1000X User Manual 89 Figure 44 SPI Trigger www biall com pl...