6-16 Keysight B2900 User’s Guide, Edition 5Function DetailsResistance MeasurementResistance MeasurementB2900 supports resistance measurement. If the measurement parameter is set toresistance OHMS (R), the source/measure unit (SMU) automatically sets the currentsource and voltage measurement operation to perform resistance measurement.For performing accurate measurement, B2900 provides the compensation function.NOTE To Enable Resistance MeasurementThe resistance measurement operation must be specified. See “Range parameters”on page 4-12 and “To Enable Resistance Measurement” on page 5-22.In the initial setting, the resistance measurement operation is set to OFF.Resistance CompensationResistance compensation (R Compen) is effective for performing low resistancemeasurements accurately. If R Compen is set to ON, the channel performsmeasurement twice and returns the compensated measurement result given by thefollowing formula. This technique is effective for reducing the thermal EMF.R compen=(V2-V1)/(I2-I1 )where, V1 is the measurement results at the 0 A source condition, and I1 is themeasurement results at the 0 V source condition.To enable resistance compensation, press the Config > Measure > R Compen > ONfunction key on a 1-channel model, or the Config > Measure > R Compen > ALL orCh 1 or Ch2 > ON function key on a 2-channel model.To disable resistance compensation, press the Config > Measure > R Compen >OFF function key on a 1-channel model, or the Config > Measure > R Compen >ALL or Ch 1 or Ch2 > OFF function key on a 2-channel model.
