Keithley 2635 Reference Manual

2600S-901-01 Rev. C / January 2008 Return to Section Topics 13-7
Series 2600 System SourceMeter® Instruments Reference Manual Section 13: Factory Scripts
Table 13-5
KIGeneral TSP test script: SweepILogMeasureV
TSP project name: KIFactoryGeneral
TSP test script name: KIGeneral
Firmware version: 1.0.2 and later
Function:
SweepILogMeasureV(smu, starti, stopi, stime, points)
Description Performs a logarithmic current sweep with voltage measured at every step
(point):
• Sets the smu to output starti amps, allows the source to settle for
stime seconds and then performs a voltage measurement.
• Sets the smu to output the next amps step, allows the source to settle for
stime seconds and then performs a voltage measurement.
• Repeats the above sequence until the voltage 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
starti
= Voltage measurement
stopi
stime
stime
stime
Parameters
smu, starti, stopi, stime, points
smu: SourceMeter channel (A or B). Defaults to SMU A if all
parameters are omitted when function is called.
starti: Sweep start current in amps.
stopi: Sweep stop current 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
Voltage measurements, current source values and timestamps are stored in
smuX.nvbuffer1.

Keithley 2635 Specifications

General

Brand	Keithley
Model	2635
Category	Measuring Instruments
Language	English