High Voltage SourceMeter Instrument Reference Manual Section 4: Sourcing an
2470-901-01 Rev. A / May 2019 4-65
Voltage sweep based on a configuration list
The following TSP example shows a voltage sweep that is based on a configuration list. It:
• Resets the instrument to its defaults.
• Sets a variable that contains the voltage levels 1 V, 10 V, 5 V, 7 V, 1 V, and 9 V.
• Creates a source configuration list called VoltageListSweep.
• Set the source function to DC voltage.
• Iterate through voltageLevels and store each voltage level in the VoltageListSweep
configuration list.
• Set up a list sweep that uses the entries from the VoltageListSweep configuration list and
s
tarts at index 1 of the list.
• Set the measure function to DC voltage.
• Start the sweep.
No buffer is defined, so the data is stored in defbuffer1. See Reading buffers (on page 6-1
) for
more information on reading buffers.
Using TSP commands
reset()
local voltageLevels = { 1, 10, 5, 7, 1, 9 }
smu.source.configlist.create("VoltageListSweep")
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.range = 10
for index = 1, table.getn(voltageLevels) do
smu.source.level = voltageLevels[index]
smu.source.configlist.store("VoltageListSweep")
end
smu.source.sweeplist("VoltageListSweep", 1, 0.001)
smu.measure.func = smu.FUNC_DC_VOLTAGE
trigger.model.initiate()
waitcomplete()
Increasing the speed of sweeps
To increase the speed of sweeps:
• Reduce the NPLC.
• Turn autozero off. If autozero is on, the instrument takes new reference and zero values for every
reading. This can slow down sweep operation. Be aware that if you disable autozero,
measurements may drift and become erroneous. To minimize drift when autozero is disabled, us
e
the
autozero once feature. For more information on the autozero options, see
Automatic
reference measurements (on page 4-42).
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