Tektronix Keithley 2601B-PULSE Reference Manual

Model 2601B-PULSE System SourceMeter Instrument Reference Manual Section 11: TSP command reference
2601B-PULSE-901-01A April 2020 11-187
Details
Contact check measurement calibration does not require range information.
Typically, points one and two will be near 0 Ω and 50 Ω, respectively.
All four measurements (cp1Measured, cp1Reference, cp2Measured, and cp2Reference) must
be made with the calibration set that is active. If not, corruption of the calibration constants
may result.
The new calibration constants are activated immediately but are not written to nonvolatile memory.
Use smua.cal.save() to save the new constants to nonvolatile memory. The active calibration
constants stay in effect until the instrument is power cycled or a calibration set is loaded from
nonvolatile memory with the smua.cal.restore() function.
This function is disabled until a successful call to smua.cal.unlock() is made.
Example
-- Short SENSE LO and LO terminals.
-- Short SENSE HI and HI terminals.
-- Allow readings to settle, then get measurements.
r0_hi, r0_lo = smua.contact.r()
-- Connect 50 OHM resistor between SENSE LO and LO.
-- Connect 50 OHM resistor between SENSE HI and HI.
-- Allow readings to settle, then get measurements.
r50_hi, r50_lo = smua.contact.r()
smua.contact.calibratelo(r0_lo, Z_actual_lo, r50_lo, 50_ohm_actual_lo)
smua.contact.calibratehi(r0_hi, Z_actual_hi, r50_hi, 50_ohm_actual_hi)
The instrument performs a contact check.
Install and measure two resistors.
The user sends the contact check LO calibration command.
The user sends the contact check HI calibration command.
Also see
Adjustment (on page 13-19)
smua.cal.restore() (on page 11-184)
smua.cal.save() (on page 11-184)
smua.cal.unlock() (on page 11-186)
smua.contact.calibratelo() (on page 11-187)
smua.contact.calibratelo()
This function adjusts the low/sense low contact check measurement.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
Yes
Usage
smua.contact.calibratelo(cp1Measured, cp1Reference, cp2Measured, cp2Reference)
cp1Measured
The value measured by this SMU for point 1
cp1Reference
The reference measurement for point 1 as measured externally
cp2Measured
The value measured by this SMU for point 2
cp2Reference
The reference measurement for point 2 as measured externally

Tektronix Keithley 2601B-PULSE Specifications

General

Brand	Tektronix
Model	Keithley 2601B-PULSE
Category	Measuring Instruments
Language	English