Agilent Technologies InfiniiVision 3000 X-Series, Programmer'S Manual

Page: 407 / 1232

:MEASure Commands
19
Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide 407
:MEASure:OVERshoot
(see page 1088 )
Command Syntax
:MEASure:OVERshoot [<source>]
<source> ::= {CHANnel<n> | FUNCtion | MATH | WMEMory<r>}
<n> ::= 1 to (# analog channels) in NR1 format
<r> ::= 1-2 in NR1 format
The :MEASure:OVERshoot command installs a screen measurement and
starts an overshoot measurement. If the optional source parameter is
specified, the current source is modified.
Query Syntax
:MEASure:OVERshoot? [<source>]
The :MEASure:OVERshoot? query measures and returns the overshoot of
the edge closest to the trigger reference, displayed on the screen. The
method used to determine overshoot is to make three different vertical
value measurements: Vtop, Vbase, and either Vmax or Vmin, depending on
whether the edge is rising or falling.
For a rising edge:
overshoot = ((Vmax- Vtop) / (Vtop- Vbase)) x 100
For a falling edge:
overshoot = ((Vbase- Vmin) / (Vtop- Vbase)) x 100
Vtop and Vbase are taken from the normal histogram of all waveform
vertical values. The extremum of Vmax or Vmin is taken from the
waveform interval right after the chosen edge, halfway to the next edge.
This more restricted definition is used instead of the normal one, because
it is conceivable that a signal may have more preshoot than overshoot, and
the normal extremum would then be dominated by the preshoot of the
following edge.
Return Format
<overshoot><NL>
<overshoot>::= the percent of the overshoot of the selected waveform in
NR3 format
See Also
• "Introduction to :MEASure Commands" on page 388
• ":MEASure:PREShoot" on page 413
• ":MEASure:SOURce" on page 421
• ":MEASure:VMAX" on page 436
N O T E
This command is not available if the source is FFT (Fast Fourier Transform).