Math And Measure; Cursors - Teledyne HDO9000 Operator's Manual

HDO9000 High Definition Oscilloscopes Operator's Manual

Math and Measure

Teledyne LeCroy offers a rich set of standard, pre-programmed tools for the "quickest time to insight"
into the characteristics of acquired waveforms. Most instruments calculate measurements for all
samples in an acquisition, enabling you to rapidly and thoroughly calculate thousands or millions of
parameter values and apply a variety of mathematical functions to the input waveform trace.

Cursors

Cursors are markers (lines, cross-hairs, or arrows) that identify voltage and time values on the
waveform. Use cursors to make fast, accurate measurements of specific points in the waveform.
There are five, standard cursor types available.
Vertical (amplitude) cursor readouts appear the trace descriptor box; Horizontal (time) cursor
readouts appear below the Timbebase descriptor box.
Cursors can be placed on math functions whose X-axis has a dimension other than time, such as an
FFT. When there is at least one non-time-domain math trace open, the Standard Cursors dialog
contains an X-Axis control where you can choose the units measured by the horizontal cursors. The
options will be appropriate to the types of function traces open; for example, if there is an FFT trace,
there is an option for Hz. The cursor lines are placed on the traces that normally display X-axis values
in the selected units.
Horizontal Relative cursors.
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