Keithley 2600B User Manual

Series 2600B
System SourceMeter® Instrument Reference Manual Section 7:
TSP command reference
2600BS-901-01 Rev. C / August 2016 7-363
SweepVLogMeasureI()
This KISweep factory script function performs a logarithmic voltage sweep with current measured at every step
(point).
Type TSP-Link accessible
Affected by Where saved Default value
Function
No
Usage
SweepVLogMeasureI(smu, startv, stopv, stime, points)
smu
System SourceMeter
®
instrument channel (for example, smua refers to SMU
channel A)
startv
Sweep start voltage in volts
stopv
Sweep stop voltage in volts
stime
Settling time in seconds; occurs after stepping the source and before performing a
measurement
points
Number of sweep points (must be
≥
2)
Details
Data for current measurements, voltage source values, and timestamps are stored in
smuX.nvbuffer1.
If all parameters are omitted when this function is called, this function is executed with the parameters
set to the default values.
Performs a logarithmic voltage sweep with current measured at every step (point):
1. Sets the smu to output startv amperes, allows the source to settle for stime seconds, and then
performs a current measurement.
2. Sets the smu to output the next volts step, allows the source to settle for stime seconds, and then
performs a current measurement.
3. Repeats the above sequence until the voltage is measured on the stopv volts 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 five-point sweep (points = 5), a measurement is performed at MeasurePoint
1, 2, 3, 4, and 5.
LogStepSize = (log10(stopi) – log10(starti)) / (points – 1)
LogStep = (MeasurePoint – 1) * (LogStepSize)
SourceStepLevel = antilog(LogStep) * startv

Keithley 2600B Specifications

General

Brand	Keithley
Model	2600B
Category	Measuring Instruments
Language	English