Section 9: TSP command reference Series 2600B System SourceMeter® instrument Reference Manual
9-210 2600BS-901-01 Rev. F/August 2021
Details
Contact check measurement calibration does not require range information.
Typically, points one and two are 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 smuX.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 smuX.cal.restore() function.
This function is disabled until a successful call to smuX.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 10-15)
smuX.cal.restore() (on page 9-206)
smuX.cal.save() (on page 9-207)
smuX.cal.unlock() (on page 9-209)
smuX.contact.calibratelo() (on page 9-211)
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