Agilent Technologies 86100A Manual de servicio descargar pdf (Pagina 281)

18-31

Measure Commands

RISetime

Command :MEASure:RISetime [<source>]

Measures the rise time of the first displayed edge by measuring the time at the lower thresh-

old of the rising edge, measuring the time at the upper threshold of the rising edge, then cal-

culating the rise time with the following algorithm:

Rise time = time at upper threshold point – time at lower threshold point.

Sources are specified with the MEASure:SOURce command or with the optional parameter

following the RISetime command.

Mode All instrument modes.

<source> {CHANnel<N> | FUNCtion<N> | RESPonse<N> | WMEMory<N> | CGRade}

Where CHANnel<N>, FUNCtion<N>, RESPonse<N>, and WMEMory<N> apply in Oscillo-

scope and TDR modes only, and CGRade in Eye mode only.

<N> For channels, functions, TDR responses and waveform memories: 1, 2, 3, or 4.

With standard measurements selected, the lower threshold is at the 10% point and the upper

threshold is at the 90% point on the rising edge.

Query :MEASure:RISetime? [<source>]

The query returns the rise time of the specified source.

Returned Format [:MEASure:RISetime] <value>[,<result_state>]<NL>

<value> is the rise time in seconds. If SENDvalid is ON, the <result_state> is returned with

the measurement result. Refer to Table 18-3 on page 18-30 for a list of the result states.

Example 10 OUTPUT 707;”:SYSTEM:HEADER OFF”

20 OUTPUT 707;":MEASURE:RISETIME?"

SCRatch

Command :MEASure:SCRatch

Clears the measurement results from the screen.

Example This example clears the current measurement results from the screen.

10 OUTPUT 707;":MEASURE:SCRATCH"

SENDvalid

Command Enables the result state code to be returned with the :MEASure:RESults? query.

Query :MEASure:SENDvalid?

The query returns the state of the Sendvalid control.

Returned Format [:MEASure:SENDvalid] {0 | 1}<NL>

Examples 10 OUTPUT 707;":MEASURE:SENDVALID ON"

This example places the current mode for SENDvalid in the string variable, Mode$.

10 DIM Mode$[50] !Dimension variable

20 OUTPUT 707;":MEASURE:SENDVALID?"

30 ENTER 707;Mode$

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Agilent Technologies 86100A Manual de servicio Pagina 281