Series 2600 System SourceMeters Reference Manual
Instrument Control Library 12-77
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2600S-901-01 Rev. A / May 2006
smuX.measure.rel.enableY
X = SMU channel (a or b)
Y = SMU measure function (v, i, r or p) where:
v = voltage, i = current, r = resistance, p = power
Attribute
Relative measurement control (on/off).
Usage
rel = smuX.measure.rel.enableY
-- Reads relative state.
smuX.measure.rel.enableY = rel
-- Writes relative state.
Set
rel
to one of the following values:
0
or
smuX.REL_OFF
Disables relative measurements.
1
or
smuX.REL_ON
Enables relative measurements.
Remarks
When relative measurements are enabled, all subsequent measured readings will be
offset by the specified relative offset value (see
smuX.measure.rel.levelY
).
Specifically, each returned measured relative reading will be the result of the following
calculation:
Relative reading = Actual measured reading – Relative offset value
Details
See “
” in
.
Also see
Example
Enables relative voltage measurements for SMU A:
smua.measure.rel.enablev = smua.REL_ON
smuX.measure.rel.levelY
X = SMU channel (a or b)
Y = SMU measure function (v, i, r or p) where:
v = voltage, i = current, r = resistance, p = power
Attribute
Offset value for relative measurements.
Usage
relval = smuX.measure.rel.levelY
-- Reads relative offset level.
smuX.measure.rel.levelY = relval
-- Writes relative offset level.
relval
Relative offset value.
Remarks
When relative measurements are enabled (see
), all
subsequent measured readings will be offset by the specified relative offset value.
Specifically, each returned measured relative reading will be the result of the following
calculation:
Relative reading = Actual measured reading – Relative offset value
Details
See “
” in
.
Also see
Example
Performs a voltage measurement and uses it as the relative offset value:
smua.measure.rel.levelv = smua.measure.v()
Summary of Contents for SourceMeter 2600 Series
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