Agilent Technologies InfiniiVision 6000 Series, Руководство пользователя, Страница: 234 / 368

234 6000 Series Oscilloscope User’s Guide
5 Making Measurements
4 Select the X and Y softkeys to make a measurement.
• X Y — Press this softkey to select either X cursors or Y
cursors for adjustment. The cursor currently assigned to
the Entry knob displays brighter than the other cursors.
X cursors are vertical dashed lines that adjust horizontally
and normally indicate time relative to the trigger point.
When used with the FFT math function as a source, the X
cursors indicate frequency.
Y cursors are horizontal dashed lines that adjust vertically
and normally indicate Volts or Amps, dependent on the
channel
Probe Units setting. When math functions are used
as a source, the measurement units correspond to that
math function.
•
X1
and
X2
— The X1 cursor (short-dashed vertical line) and
X2 cursor (long-dashed-vertical line) adjust horizontally
and indicate time relative to the trigger point for all
sources except math FFT (frequency is indicated). In XY
horizontal mode, the X cursors display channel 1 values
(Volts or Amps). The cursor values for the selected
waveform source are displayed within the X1 and X2
softkeys.
The difference between X1 and X2 (
∆
X) and 1/
∆
X are
displayed on the dedicated line above the softkeys or in
the display area when some menus are selected.
Turn the Entry knob to adjust the X1 or X2 cursor when
its softkey is selected.
•
Y1
and
Y2
— The Y1 cursor (short-dashed horizontal line)
and Y2 cursor (long-dashed horizontal line) adjust
vertically and indicate values relative to the waveform's
ground point, except math FFT where the values are
relative to 0 dB. In XY horizontal mode, the Y cursors
display channel 2 values (Volts or Amps). The cursor
values for the selected waveform source are displayed
within the Y1 and Y2 softkeys.
The difference between Y1 and Y2 (
∆
Y) is displayed on the
dedicated line above the softkeys or in the display area
when some menus are selected.