Keysight B2961A/B2962A SCPI Command Reference, Edition 6 4- 7
Subsystem Commands
CALCulate Subsystem
POWER Calculates power using the following formula.
POWER = VOLT[c] * CURR[c]
OFFCOMPOHM Calculates offset compensated ohms (resistance) using the following formula.
OFFCOMPOHM = (VOLT[c][1]-VOLT[c][0]) / (CURR[c][1]-CURR[c][0])
where, VOLT[c][0] and CURR[c][0] are data measured with the current output
level, and VOLT[c][1] and CURR[c][1] are data measured with a different current
output level or zero output.
This function is effective for reducing measurement errors in low resistance
measurements.
VARALPHA Calculates varistor alpha using the following formula.
VARALPHA = log(CURR[c][1] / CURR[c][0]) / log(VOLT[c][1] / VOLT[c][0])
where, CURR[c][0] and VOLT[c][0] are measurement data at a point on a varistor’s
non-linear I-V characteristics curve, and CURR[c][1] and VOLT[c][1] are data at
another point.
VOLTCOEF Calculates voltage coefficient using the following formula.
VOLTCOEF = (RES[c][1]-RES[c][0]) / (RES[c][1] * (VOLT[c][1]-VOLT[c][0]))
* 100 %
where, RES[c][0] and RES[c][1] are resistance measurement data at the first and
second measurement points, respectively, and VOLT[c][0] and VOLT[c][1] are
voltage measurement data at the first and second measurement points, respectively.
The voltage coefficient is known as the ratio of the fractional change for a resistor
whose resistance varies with voltage.
:CALCulate:MATH[:EXPRession]:DELete:ALL
Deletes all user-defined math expressions. This command cannot delete predefined
math expressions.
Syntax :CALCulate[c]:MATH[:EXPRession]:DELete:ALL
Example :CALC2:MATH:EXPR:DEL:ALL
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