14–4
CURSORS/MEASURE & Parameters
Parameters: Automatic Measurements
The instrument can determine certain signal properties
automatically, using signal parameters. The scope’s standard
parameters are listed and described in Appendix D of this
manual.
*
For common measurements on a lone signal, parameters can be
measured in either of two standard classes or modes: in the
amplitude or time domain.
On different signals, they can be customized and used to determine
up to five of the quantities on the parameter list. Customized
parameter measurements can also be used for Pass/Fail testing
against chosen limits (see page 14–13).
Statistics on the parameter values are accumulated and can be
displayed for all modes.
In addition to the overall number of sweeps used, each parameter
has its average, lowest and highest value. The standard deviation of
the parameter is also calculated.
Parameter Symbols The algorithms that determine pulse waveform parameters are able
to detect those situations where the mathematical formulas may be
applied. However, the results obtained should be interpreted with
caution. In such cases, the scope displays the name of the
parameter and its value are separated on the screen by a graphic
symbol, which acts either as information on the parameter or as a
warning. The following table explains these symbols.
*
A wide range of additional parameters are available in the
specialized software packages, such as WP03, described in those
packages’ operator’s manuals
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