Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 139)

Wave Expert
WE-OM-E Rev A
137
WAVEFORM MEASUREMENTS
Measuring with Cursors
Cursors are important tools that aid you in measuring signal values. Cursors are markers — lines,
cross-hairs, or arrows — that you can move around the grid or the waveform itself. Use cursors to
make fast, accurate measurements and to eliminate guesswork. There are two basic types:
y Horiz(ontal) (generally Time or Frequency) cursors are markers that you move
horizontally along the waveform. Place them at a desired location along the time axis to
read the signal’s amplitude at the selected time.
y Vert(ical) (Voltage) cursors are lines that you move vertically on the grid to measure the
amplitude of a signal.
Cursor Measurement Icons
The Readout icons depict what is being measured for each measurement mode.
Each cursor locates a point on the waveform. The cursor values can be read in the
descriptor label for the trace. Use the Position data entry fields at the right side of the
dialog to place the cursors precisely.
This is the difference in Y values. The value can be read in the descriptor label for the
trace.
Displays absolute and delta cursors together.
This gives the slope between cursors.
If there are non-time-domain waveforms displayed, there will also be a menu offering choices of
x-axis units: s or Hz, for example.
Cursors Setup
Quick Display
At any time, you can change the display of cursor types (or turn them off) without invoking the
"Cursors Setup" dialog as follows:
1. In the menu bar, touch Cursors, then Off, Abs Horizontal, Rel Horizontal, Abs Vertical,
or Rel Vertical.
2. The cursors displayed will assume the positions previously set up. If you want to change
their position or measurement mode, in the menu bar touch Cursors, then Cursors Setup
in the drop-down menu.