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2600AS-901-01 Rev. B / September 2008
Return to
19-245
Series 2600A System SourceMeter® Instruments Reference Manual
Section 19: Remote Commands
Table 19-6
KISweep TSP test script: SweepVLogMeasureI
TSP project name:
KISweep
TSP test script name:
KISweep
Function:
SweepVLogMeasureI(smu, startv, stopv, stime, points)
Description
Performs a logarithmic voltage sweep with current measured at every step (point):
• Sets the
smu
to output
startv
volts, allows the source to settle for
stime
seconds and then performs a current measurement.
• Sets the
smu
to output the next volts step, allows the source to settle for
stime
seconds and then performs a current measurement.
• Repeats the above sequence until the current is measured on the
stopi
amps step.
The source level at each step (SourceStepLevel) is automatically calculated as
follows:
MeasurePoint
= The step point number for a measurement. For example,
for a 5-point sweep (points = 5), a measurement will be performed at
MeasurePoint 1, 2, 3, 4 and 5.
LogStepSize = (log10(stopi) – log10(starti)) / (points – 1)
LogStep = (MeasurePoint – 1) x (LogStepSize)
SourceStepLevel = antilog(LogStep) x starti
Parameters
smu, startv, stopv, stime, points
smu:
SourceMeter instrument channel (A or B). Defaults to SMU A if all
parameters are omitted when function is called.
starti:
Sweep start voltage in amps.
stopi:
Sweep stop voltage in amps.
stime:
Settling time in seconds. Occurs after stepping the source and before
performing a measurement.
points:
Number of sweep measure points (must be
≥
2).
Data
Current measurements, voltage source values and timestamps are stored in
smuX.nvbuffer1
.
startv
=
Current
m
e
as
ure
m
ent
stopv
stime
stime
stime