Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Section 4: Measurement optimization
077114601 / March 2019
4-11
To enable the selected averaging filter:
:SENS:CURR:AVER:STATe ON
:SENS:CONC:AVER:STATe ON
:SENS:VOLT:AVER:STATe ON
Math calculations that you can apply to measurements
The 2281S supports mx+b built-in math calculations in the power supply function. Math calculations
are applied to the input signal after filter and relative offset operations are completed. For more details
on the order of operations, see
(on page 4-15).
This feature is not available for the battery test and battery simulation functions.
Math operations apply to the selected measurement function. If you change the measurement
function, the math operation for that measurement function becomes active.
When you select the concurrent measurement function, math operations only apply to current
measurements and do not affect voltage measurements.
mx+b
The mx+b math operation lets you manipulate normal display readings (x) mathematically based on
the following calculation:
mx + b = Y
Where:
m
= A user-defined constant for the scale factor
x
= The measurement reading (if you are using a relative offset, this is the measurement with relative
offset applied)
b
= A user-defined constant for the offset factor
Y
= The displayed result
When the mx+b math operation is active, the unit of measure for the front-panel voltage and current
readings defaults to the character
X
and the
CALC
indicator is displayed to the right of the
measurement.
