Keithley 2182

I-18 Delta, Pulse Delta, and Differential Conductance
Power calculation
With WATTS (power) measurement units selected, power for Differential Conductance is
calculated using Average Voltage (see “Average Voltage calculation”) and Average Cur-
rent. Average Current is calculated by the Model 622x as follows:
Where: AvgCurr is the Average Current corresponding to a given Differential
Conductance reading.
X, Y, and Z are the three current levels for the Differential Conductance reading.
With Average Voltage and Average Current known (calculated by the Model 622x), power
is then calculated as follows:
AvgCurr
X 2YZ++
4
--------------------------=
AvgCurr
XY+()
2
------------------
ZY+()
2
-----------------+
2
-------------------------------------------=
Power AvgVolt AvgCurr×=