Keithley 2601 Reference Manual page 387

Series 2600 System SourceMeter® Instruments Reference Manual
Table 13-6 (continued)
KIGeneral TSP test script: SweepVLogMeasureI
TSP project name:
TSP test script name:
Firmware version:
Description
Parameters
Data
2600S-901-01 Rev. C / January 2008
KIFactoryGeneral
KIGeneral
1.0.2 and later
Performs a logarithmic voltage sweep with current measured at every step
(point):
• Sets the to output
smu
seconds and then performs a current measurement.
• Sets the to output the next volts step, allows the source to settle for
smu
seconds and then performs a current measurement.
stime
• Repeats the above sequence until the current is measured on the
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
smu, startv, stopv, stime, points
SourceMeter channel (A or B). Defaults to SMU A if all
smu:
parameters are omitted when function is called.
Sweep start voltage in amps.
starti:
Sweep stop voltage in amps.
stopi:
Settling time in seconds. Occurs after stepping the source and
stime:
before performing a measurement.
Number of sweep measure points (must be
points:
Current measurements, voltage source values and timestamps are stored in
smuX.nvbuffer1.
Return to Section Topics
volts, allows the source to settle for
startv
Section 13: Factory Scripts
stime
stopi
≥ 2).
13-9