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101

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

19 :MEASure Commands

:MEASure:PHASe

(see page 860)

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 330

• ":MEASure:DELay" on page 340

• ":MEASure:PERiod" on page 351

• ":MEASure:SOURce" on page 362

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Agilent Technologies InfiniiVision 3000 DSO-X 3054A Manuale di Servizio Pagina 352

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