Agilent Technologies 2000 X-Series, Руководство пользователя

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170 Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide
13
Cursors
Y Cursors Y cursors are horizontal dashed lines that adjust vertically and can be
used to measure Volts or Amps, dependent on the channel
Probe Units
setting, or they can measure ratios (%). When math functions are used as
a source, the measurement units correspond to that math function.
The Y1 cursor is the short- dashed horizontal line and the Y2 cursor is the
long- dashed horizontal line.
The Y cursors adjust vertically and typically 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).
When active, the Y1 and Y2 cursor values for the selected waveform
source are displayed in the softkey menu area.
The difference between Y1 and Y2 (
Δ
Y) is displayed in the Cursors box in
the right- side information area.
To make cursor measurements
1 Connect a signal to the oscilloscope and obtain a stable display.
2 Press the [Cursors] key.
The Cursors box in the right- side information area appears, indicating
that cursors are "on". (Press the
[Cursors]
key again when you want to
turn cursors off.)
3 In the Cursors Menu, press Mode ; then, select the desired mode:
• Manual —
Δ
X, 1/
Δ
X, and
Δ
Y values are displayed.
Δ
X is the difference
between the X1 and X2 cursors and
Δ
Y is the difference between the
Y1 and Y2 cursors.