Keithley 2657A User Manual

Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference
2657A-901-01 Rev. B/December 2012 7-329
Figure 120: SweepVLogMeasureI()
Example
SweepVLogMeasureI(smua, 100,
1000, 0.02, 5)
This function performs a five-point logarithmic voltage
sweep starting at 100 V and stopping at 1000 V. Current
is measured at every step (point) in the sweep after a
20 ms source settling period.
The following table contains log values and corresponding
source levels for the five-point logarithmic sweep:
MeasurePoint LogStepSize LogStep SourceStepLevel
1 0.25 0.0 100.00 V
2 0.25 0.25 177.83 V
3 0.25 0.5 316.23 V
4 0.25 0.75 562.34 V
5 0.25 1.0 1000.0 V
Also see
KISweep factory script (on page 5-19)
timer.measure.t()
This function measures the elapsed time since the timer was last reset.
Type TSP-Link accessible
Affected by Where saved Default value
Function Yes
Usage
time = timer.measure.t()
time
The elapsed time in seconds (1 μs resolution)
Example 1
timer.reset()
-- (intervening code)
time = timer.measure.t()
print(time)
Resets the timer and measures the time since the
reset.
Output:
1.469077e+01
The output will vary. The above output indicates that
timer.measure.t() was executed 14.69077
seconds after timer.reset().
startv
= Current measurement
stopv
stime
stime
stime

Keithley 2657A Specifications

General

Brand	Keithley
Model	2657A
Category	Measuring Instruments
Language	English