Keithley 4200A-SCS Reference Manual page 1035

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Section 13: LPT library function reference

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

Measurement model

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.

Programming examples

measurements.

(on page 13-175)

(on page 13-178)

(on page 13-181)

(on page 13-182)

(on page 13-182)

(on page 13-191)

Impedance (Z) and phase (θ in degrees)

Resistance and reactance

Parallel capacitance and conductance

Series capacitance and resistance

Parallel capacitance and dissipation factor

Series capacitance and dissipation factor

(on page 13-194) 2 through 5 use the smeas command for impedance

Model 4200A-SCS Parameter Analyzer Reference Manual

Parameter value

KI_CVU_TYPE_ZTH

KI_CVU_TYPE_RJX

KI_CVU_TYPE_CPGP

KI_CVU_TYPE_CSRS

KI_CVU_TYPE_CPD

KI_CVU_TYPE_CSD

4200A-901-01 Rev. C / February 2017