532 Keysight InfiniiVision 3000T X-Series Oscilloscopes Programmer's Guide
23 :MEASure Power Commands
:MEASure:CRESt
(see page 1276)
Command Syntax
:MEASure:CRESt [<source>]
<source> ::= {CHANnel<n>| FUNCtion<m> | MATH<m>}
<n> ::= 1 to (# analog channels) in NR1 format
<m> ::= 1 to (# math functions) in NR1 format
The :MEASure:CRESt command installs a crest factor measurement on screen.
The <source> parameter is the channel probing current or voltage. This source can
also be specified by the :MEASure:SOURce command.
Crest factor is a measure of power quality. It is the ratio between the
instantaneous peak AC line current (or voltage) required by the load and the RMS
current (or voltage). For example: Ipeak / IRMS or Vpeak / VRMS.
Query Syntax
:MEASure:CRESt? [<source>]
The :MEASure:CRESt query returns the measured crest factor.
Return Format
<return_value><NL>
<return_value> ::= the crest factor value in NR3 format
See Also • ":MEASure:SOURce" on page 499
• ":POWer:QUALity:APPLy" on page 622
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