Smux.measure.calibratey() - Keithley 2651A Reference Manual

Model 2651A High Power System SourceMeter® Instrument Reference Manual
Also see
reset() (on page 7-151)
smuX.measure.nplc
setup.recall()
smuX.reset()
Autozero (on page 2-22)

smuX.measure.calibrateY()

This function generates and activates new measurement calibration constants.
Type TSP-Link accessible
Function Yes
Usage
smuX.measure.calibrateY(range, cp1Measured, cp1Reference, cp2Measured,
cp2Reference)
X
Y
range
cp1Measured
cp1Reference
cp2Measured
cp2Reference
Details
This function generates and activates new calibration constants for the given range. The positive and negative
polarities of the instrument must be calibrated separately. Use a positive value for range to calibrate the positive
polarity and a negative value for range to calibrate the negative polarity.
Typically the two calibration points used will be near zero for calibration point 1 and 90% of full scale for
calibration point 2.
All four measurements (cp1Measured, cp1Reference, cp2Measured, and cp2Reference) must be made
with the active calibration set. Corruption of the calibration constants may result if this is not heeded.
The new calibration constants will be activated immediately but they will not be written to nonvolatile storage.
Use smuX.cal.save() to commit the new constants to nonvolatile storage. The active calibration constants will
stay in effect until the instrument is power cycled or a calibration set is loaded from nonvolatile storage with the
smuX.cal.restore() function.
This function will be disabled until a successful call to smuX.cal.unlock() is made.
Example
smua.measure.calibratev(1, 1e-4, 1e-5, 0.92,
0.903)
2651A-901-01 Rev. A / March 2011
(on page 7-201)
(on page 7-170)
(on page 7-209)
Affected by
Source-measure unit (SMU) channel (for example,
smua.measure.calibratev() applies to SMU channel A).
SMU measurement function (v = voltage, i = current).
The measurement range to calibrate.
The value measured by this SMU for calibration point 1.
The reference measurement for calibration point 1 as measured externally.
The value measured by this SMU for calibration point 2.
The reference measurement for calibration point 2 as measured externally.
Where saved Default value
SMU channel A calibrates voltage
measurement using following values: 1 V
calibration range, 1e-4 for +zero
measurement reading, 1e-5 for +zero
DMM measurement reading, 0.92 for
+FS measurement reading, and 0.903 for
the +FS DMM measurement reading.
Section 7: Command reference
7-193