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Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 7: TSP command reference

2657A-901-01 Rev. B/December 2012 7-207

smuX.measure.rel.levelY

This attribute sets the offset value for relative measurements.

Type TSP-Link accessible Affected by Where saved Default value

Attribute (RW) Yes Instrument reset

SMU reset

Recall setup

Not saved 0

Usage

relValue = smuX.measure.rel.levelY

smuX.measure.rel.levelY = relValue

relValue

Relative measurement offset value

Source-measure unit (SMU) channel (for example, smua.measure.rel.levelv

applies to SMU channel A)

SMU measurement function (v = voltage, i = current, r = resistance, p = power)

Details

This attribute specifies the offset value used for relative measurements. When relative measurements are

enabled (see smuX.measure.rel.enableY), all subsequent measured readings will be offset by the value of

this attribute. Each returned measured relative reading is the result of the following calculation:

Relative reading = Actual measured reading - Relative offset value

Example

smua.measure.rel.levelv = smua.measure.v()

Performs a voltage measurement using

SMU channel A and then uses it as the

relative offset value.

Also see

Relative offset (on page 3-1)

reset()

(on page 7-155)

smuX.measure.rel.enableY

(on page 7-205)

smuX.reset()

(on page 7-211)

Keithley 2657A User Manual

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