272 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Guide
5 Commands by Subsystem
Introduction to
:MEASure
Commands
The commands in the MEASure subsystem are used to make parametric
measurements on displayed waveforms.
Measurement Setup
To make a measurement, the portion of the waveform required for that
measurement must be displayed on the oscilloscope screen.
Measurement Error
If a measurement cannot be made (typically because the proper portion of
the waveform is not displayed), the value +9.9E+37 is returned for that
measurement.
Making Measurements
If more than one waveform, edge, or pulse is displayed, time
measurements are made on the portion of the displayed waveform closest
to the trigger reference (left, center, or right).
:MEASure:XMAX
[<source>] (see
page 316)
:MEASure:XMAX?
[<source>] (see
page 316)
<source> ::= {CHANnel<n> |
FUNCtion | MATH}
<n> ::= 1-2 or 1-4 in NR1 format
<return_value> ::= horizontal
value of the maximum in NR3
format
:MEASure:XMIN
[<source>] (see
page 317)
:MEASure:XMIN?
[<source>] (see
page 317)
<source> ::= {CHANnel<n> |
FUNCtion | MATH}
<n> ::= 1-2 or 1-4 in NR1 format
<return_value> ::= horizontal
value of the maximum in NR3
format
Table 53 :MEASure Commands Summary (continued)
Command Query Options and Query Returns
Measurement Type Portion of waveform that must be displayed
period, duty cycle, or frequency at least one complete cycle
pulse width the entire pulse
rise time rising edge, top and bottom of pulse
fall time falling edge, top and bottom of pulse