Agilent Technologies InfiniiVision 6000 Series Manual de servicio descargar pdf (Pagina 346)

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101

346 Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide

5 Commands by Subsystem

:MEASure:RISetime

(see page 798)

Command Syntax

:MEASure: RISetime [<source>]

<source> ::= {CHANnel<n> | FUNCtion | MATH}

<n>::={1|2|3|4}forthefour channel oscilloscope models

<n> ::= {1 | 2} for the two channel oscilloscope models

The :MEASure:RISetime command installs a screen measurement and

starts a rise- time measurement. If the optional source parameter is

specified, the current source is modified.

Query Syntax

:MEASure: RISetime? [<source>]

The :MEASure:RISetime? query measures and outputs the rise time of the

displayed rising (positive- going) edge closest to the trigger reference. For

maximum measurement accuracy, set the sweep speed as fast as possible

while leaving the leading edge of the waveform on the display. The rise

time is determined by measuring the time at the lower threshold of the

rising edge and the time at the upper threshold of the rising edge, then

calculating the rise time with the following formula:

rise time = time at upper threshold - time at lower threshold

Return Format

<value> ::= rise time in seconds in NR3 format

See Also • "Introduction to :MEASure Commands" on page 324

• ":MEASure:SOURce" on page 349

• ":MEASure:FALLtime" on page 334

NOTE

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

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