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

20 :MEASure Commands

:MEASure:PHASe

(see page 1138)

Command Syntax

:MEASure:PHASe [<source1>][,<source2>]

<source1>, <source2> ::= {CHANnel<n> | FUNCtion | MATH | WMEMory<r>}

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

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

The :MEASure:PHASe command places the instrument in the continuous

measurement mode and starts a phase measurement.

Query Syntax

:MEASure:PHASe? [<source1>][,<source2>]

The :MEASure:PHASe? query measures and returns the phase between the

specified sources.

A phase measurement is a combination of the period and delay

measurements. First, the period is measured on source1. Then the delay is

measured between source1 and source2. The edges used for delay are the

source1 rising edge used for the period measurement closest to the

horizontal reference and the rising edge on source 2. See :MEASure:DELay

for more detail on selecting the 2nd edge.

The phase is calculated as follows:

phase = (delay / period of input 1) x 360

Return Format

<value> ::= the phase angle value in degrees in NR3 format

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

• ":MEASure:DELay" on page 416

• ":MEASure:PERiod" on page 433

• ":MEASure:SOURce" on page 444

Agilent Technologies InfiniiVision 3000 X-Series Programmer's Guide

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