Keithley 2182, User Manual, Page: 334 / 339

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 2 Y Z + +
4
-------------------------- = AvgCurr
X Y + ( )
2
------------------
Z Y + ( )
2
----------------- +
2
------------------------------------------- =
Power AvgVolt AvgCurr
×
=