Keithley 2450 User Manual

Model 2450
Interactive SourceMeter® Instrument Reference Manual Section 8:
TSP command reference
2450-901-01 Rev. B/September 2013 8-113
smu.measure.math.mxb.bfactor
This attribute specifies the offset for the y = mx + b 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
0
Usage
value = smu.measure.math.mxb.bfactor
smu.measure.math.mxb.bfactor = value
value
The offset for the y = mx + b operation; the valid range is −1e12 to +1e12
Details
This attribute specifies the offset (b) for an mx + b operation.
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 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 3-6)
smu.measure.math.enable (on page 8-111)
smu.measure.math.mxb.mfactor (on page 8-114)

Keithley 2450 Specifications

General

Brand	Keithley
Model	2450
Category	Test Equipment
Language	English