450
Agilent InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide
21
:MEASure Commands
:MEASure:PREShoot
(see
page 1208
)
Command Syntax
:MEASure:PREShoot [<source>]
<source> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r>}
<n> ::= 1 to (# analog channels) in NR1 format
<r> ::= 1 to (# ref waveforms) in NR1 format
The :MEASure:PREShoot command installs a screen measurement and
starts a preshoot measurement. If the optional source parameter is
specified, the current source is modified.
Query Syntax
:MEASure:PREShoot? [<source>]
The :MEASure:PREShoot? query measures and returns the preshoot of the
edge closest to the trigger, displayed on the screen. The method used to
determine preshoot is to make three different vertical value measurements:
Vtop, Vbase, and either Vmin or Vmax, depending on whether the edge is
rising or falling.
For a rising edge:
preshoot = ((Vmin- Vbase) / (Vtop- Vbase)) x 100
For a falling edge:
preshoot = ((Vmax- Vtop) / (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 before the chosen edge, halfway back to the
previous edge. This more restricted definition is used instead of the
normal one, because it is likely that a signal may have more overshoot
than preshoot, and the normal extremum would then be dominated by the
overshoot of the preceding edge.
Return Format
<value><NL>
<value> ::= the percent of preshoot of the selected waveform
in NR3 format
See Also
•
"Introduction to :MEASure Commands"
on page 420
•
":MEASure:SOURce"
on page 458
•
":MEASure:VMIN"
on page 475
•
":MEASure:VMAX"
on page 474
•
":MEASure:VTOP"
on page 480
•
":MEASure:VBASe"
on page 473
Summary of Contents for InfiniiVision 4000 X-Series
Page 1: ...s1 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide ...
Page 32: ...32 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide ...
Page 52: ...52 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 2 Setting Up ...
Page 66: ...66 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 3 Getting Started ...
Page 242: ...242 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 7 ACQuire Commands ...
Page 252: ...252 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 8 BUS n Commands ...
Page 300: ...300 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 12 DEMO Commands ...
Page 330: ...330 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 15 DVM Commands ...
Page 386: ...386 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 18 HARDcopy Commands ...
Page 484: ...484 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 21 MEASure Commands ...
Page 1098: ...1098 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 34 WGEN w Commands ...
Page 1174: ...1174 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide 37 Error Messages ...
Page 1352: ...1352 Agilent InfiniiVision 4000 X Series Oscilloscopes Programmer s Guide Index ...