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POWER
OFFCOMPOHM
Math Expression
B2900 provides a math function for performing calculations using the measurement
result data. The calculation result can be displayed and used for the limit test and
trace statistics.
For the predefined math expressions, see
To define a math expression, see the Keysight B2900 SCPI Command Reference.
Math expressions can be defined by using the :CALC:MATH commands. For
resources effective for the expression, see
To use the math function, see
To display the calculation result, see
Result dialog box" on page
Predefined Math Expressions
The following math expressions have already been defined in B2900. The
predefined math expressions are not cleared by the power off and on operations.
•
Power (POWER)
•
Offset Compensated Ohms (OFFCOMPOHM)
•
Varistor Alpha (VARALPHA)
•
Voltage Coefficient (VOLTCOEF)
In the following formula, [c] specifies the channel (1 or 2) used for the
measurement.
Calculates power using the following formula.
POWER = VOLT[c] * CURR[c]
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 the data measured with a current output
level, and VOLT[c][1] and CURR[c][1] are the data measured with a different
current output level or zero output.
Keysight B2900 User's Guide, Edition 5
"Predefined Math
"Resources Used in the
"Math Expression dialog box" on page
"Graph View" on page 4-19
4-40.
Function Details
Math Expression
Expressions".
Expressions".
4-32.
and
"Measure
6-17
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