Cursor
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TDS3000B Serie s User Manual
Measurements. The XY waveform c ursor measurement s show
difference (n) and absolute (@ ) values for the X axis, the Y axis,
and the time of the active cursor.
nX: 1.43V @X: -140mV
nY: 2.14V @Y: 480mV
nt: -660ns @t: 1.61ms
There are two waveform cursors; a reference cursor (
), and a delta
cursor (). All difference (n) measurements are measured from the
reference cursor to the del ta cursor. A negative nXmeasurement
means that the delta cursor is positioned earlier i n the waveform
record than the reference cursor. A negative nY measurement means
that the delta cursor is positioned at a lower Y waveform signal level
than the reference cursor.
All absolute (@) measurements are referenced to the XY waveform’s
0, 0 origin, a nd show the value of the active cursor.
0, 0 Origin. The XY waveform origin i s the 0 volt point of each source
waveform. Positioning both source waveform 0 volt poi nts on t he
vertical center graticule places the origin in the center of the screen.
Switching Between XY and YT. YoucanswitchbetweenXYandYT
display m ode to see the location of the cursors in t he YT waveform.
The waveform record i con at the top of the graticule also shows the
relative cursor positions in the waveform record.
Waveform Sources. You can use XY cursors on active ac quisitions,
single sequence acquisitions, and reference waveforms. You need to
store both XY source wave forms in order to recreate an XY
waveform. The X axis waveform must be stored in Ref1.
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