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:MEASure Commands 20

Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide 433

:MEASure:PERiod

(see page 1138)

Command Syntax

:MEASure:PERiod [<source>]

<source> ::= {<digital channels> | CHANnel<n> | FUNCtion | MATH

| WMEMory<r>}

<digital channels> ::= DIGital<d> for the MSO models

<n> ::= 1 to (# of analog channels) in NR1 format

<r> ::= 1-2 in NR1 format

<d> ::= 0 to (# digital channels - 1) in NR1 format

The :MEASure:PERiod command installs a screen measurement and starts

the period measurement. If the optional source parameter is specified, the

current source is modified.

Query Syntax

:MEASure:PERiod? [<source>]

The :MEASure:PERiod? query measures and outputs the period of the

cycle closest to the trigger reference on the screen. The period is measured

at the midpoint of the upper and lower thresholds.

IF the edge closest to the trigger reference on screen is rising:

THEN period = (time at trailing rising edge - time at leading rising edge)

ELSE period = (time at trailing falling edge - time at leading falling edge)

Return Format

<value> ::= waveform period in seconds in NR3 format

See Also • "Introduction to :MEASure Commands" on page 406

• ":MEASure:SOURce" on page 444

• ":MEASure:NWIDth" on page 429

• ":MEASure:PWIDth" on page 437

• ":MEASure:FREQuency" on page 426

Example Code • "Example Code" on page 445

NOTE

This command is not available if the source is FFT (Fast Fourier Transform).

Agilent Technologies InfiniiVision 3000 X-Series Programmer's Guide

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