Agilent Technologies 86100A Manuel de service télécharger pdf (Page 285)

18-35

Measure Commands

TVOLt?

NOTE When receiving numeric data into numeric variables, turn off the headers. Otherwise, the headers may cause

misinterpretation of returned data.

TVOLt?

Query :MEASure:TVOLt? <voltage>,<slope><occurrence>[,<source>]

Returns the time interval between the trigger event and the specified voltage level and transi-

tion (oscilloscope mode) or the time interval between the reference plane and the specified

voltage level and transition (TDR mode). The source is specified with the MEASure:SOURce

command or with the optional parameter following the TVOLt? query. <voltage> is the volt-

age level at which time will be measured. <slope> is the direction of the waveform change

when the specified voltage is crossed, rising (+) or falling (–). <occurrence> is the number of

the crossing to be reported. If one, the first crossing is reported; if two, the second crossing is

reported, and so on. <source> represents {CHANnel<N> | FUNCtion<N> | WMEMory<N> |

RESPonse<N>} where <N> is an integer, from 1 through 4.

Mode Oscilloscope and TDR modes.

Returned Format [:MEASure:TVOLt] <time>[,<result_state>]<NL>

<time> is the time interval between the trigger event (or reference plane, in TDR mode) and

the specified voltage level and transition. 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 The following example returns the time interval between the trigger event and the transition

through –.250 Volts on the third rising edge of the source waveform to the numeric variable,

Time.

10 OUTPUT 707;”:SYSTEM:HEADER OFF”

20 OUTPUT 707;”:MEASURE:TVOLT? -.250,+3”

NOTE When receiving numeric data into numeric variables, turn off the headers. Otherwise, the headers may cause

misinterpretation of returned data.

VAMPlitude

Command :MEASure:VAMPlitude [<source>]

Calculates the difference between the top and base voltage of the specified source. Sources

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

the VAMPlitude command.

<source> is the {CHANnel<N> | FUNCtion<N> | RESPonse<N> | WMEMory<N>} where <N>

is 1, 2, 3, or 4.

Mode Oscilloscope and TDR modes.

Query :MEASure:VAMPlitude? [<source>]

The query returns the calculated difference between the top and base voltage of the specified

source.

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

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Agilent Technologies 86100A Manuel de service Page 285