13: LPT library function reference Model 4200A-SCS Parameter Analyzer
13-190 4200A-901-01 Rev. C / February 2017
Details
This command makes an impedance measurement on each step of a voltage or frequency sweep.
The measured values for a sweep are returned in arrays. The measured readings are posted to the
Clarius Analyze sheet and graph after the test has finished.
Before calling smeasz, use the forcev command to set the DC bias level, the setfreq command
to set the AC drive frequency and the setlevel command to set the AC drive voltage.
Measurement model parameter values
Impedance (Z) and phase (θ in degrees)
Parallel capacitance and conductance
Series capacitance and resistance
Parallel capacitance and dissipation factor
Series capacitance and dissipation factor
You can also use the smeaszRT command to measure and return sweep impedance
measurements. It posts the measured readings to Clarius in real time.
To return a single impedance measurement, use measz.
Example
Programming examples (on page 13-194) 2 through 5 use the smeas command for impedance
measurements.
Also see
forcev (on page 13-175)
measz (on page 13-178)
setfreq (on page 13-181)
setlevel (on page 13-182)
setmode (on page 13-182)
smeaszRT (on page 13-191)
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