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18-26
Measure Commands
JITTer:UNITs
JITTer:UNITs
Command :MEASure:JITTer:UNITs {SECond|UINTerval}
Sets the units used for jitter mode measurements, seconds or unit interval.
Restrictions Jitter mode. Software revision A.04.00 and above (86100C instruments).
Query :MEASure:JITTer:UNITs?
This query returns the current setting for jitter mode measurement units.
Returned Format [:MEASure:JITTer:UNITs] {SEC|UINT}<NL>
Example :MEASure:JITTer:UNITs SEC
NWIDth
Command :MEASure:NWIDth [<source>]
Measures the width of the first negative pulse on the screen using the mid-threshold levels of
the waveform (50% levels with standard measurements selected). The source is specified
with the MEASure:SOURce command or with the optional parameter following the NWIDth
command. The algorithm is, if the first edge on screen is rising, then
nwidth = time at the second rising edge – time at the first falling edge
else,
nwidth = time at the first rising edge – time at the first falling edge.
<source> is {CHANnel<N> | FUNCtion<N> | WMEMory<N>}. <N> for channels is dependent
on the type of plug-in and its location in the instrument. For functions: 1 or 2. For waveform
memories (WMEMORY): 1, 2, 3, or 4.
Mode Oscilloscope mode only
Query :MEASure:NWIDth? [<source>]
The query returns the measured width of the first negative pulse of the specified source.
Returned Format [:MEASure:NWIDth] <value>[,<result_state>]<NL>
<value> is the width of the first negative pulse on the screen using the mid-threshold levels of
the waveform. 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:NWIDTH?”
OVERshoot
Command :MEASure:OVERshoot [<source>]
Measures the overshoot of the first edge on the screen. Sources are specified with the MEA-
Sure:SOURce command or with the optional parameter following the OVERshoot command.
The algorithm is:
If the first edge onscreen is rising, then
overshoot = (Local Vmax - Vtop) / Vamplitude