Section 8: TSP command reference
Model 2461 Interactive SourceMeter® Instrument Reference Manual
8-162
2461-901-01 A/November 2015
smu.measure.math.mxb.mfactor
This attribute specifies the scale factor, m, for the y = mx + b math operation.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Restore configuration
Instrument reset
Power cycle
Measure configuration list
Function change
Configuration script
Measure configuration list
1
Usage
valu
e = smu.measure.math.mxb.mfactor
smu.measure.math.mxb.mfactor =
value
value
The scale factor; the valid range is
−
1e12 to
+
1e12
Details
This command sets the scale factor (m) for an mx + b operation for the selected measurement
function.
The mx + b math operation lets you manipulate normal display readings (x) mathematically according
to the following calculation:
y = mx + b
Where:
•
y
is the displayed result
•
m
is a user-defined constant for the scale factor
•
x
is the measurement reading (if you are using a relative offset, this is the measurement with relative
offset applied)
•
b
is the user-defined constant for the offset factor
Example
smu.measure.func = smu.FUNC_DC_VOLTAGE
smu.measure.math.format = smu.MATH_MXB
smu.measure.math.mxb.mfactor = 0.80
smu.measure.math.mxb.bfactor = 50
smu.measure.math.enable = smu.ON
Set the measurement function to voltage.
Set the math operation to mx+b.
Set the scale factor for the mx+b operation
to 0.80.
Set the offset factor to 50.
Enable the math function.
Also see
Calculations that you can apply to measurements
(on page 3-82)
(on page 8-158)
(on page 8-160)
