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Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual
Section 8: TSP command reference
DMM7510-901-01 Rev. B / May 2015
8-137
dmm.measure.bias.actual
This attribute returns the amount of current the instrument is sourcing when it makes measurements.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (R)
Yes
Not applicable
Not applicable
Not applicable
Usage
value
= dmm.measure.bias.actual
value
The actual bias level
Functions
dmm.FUNC_DC_VOLTAGE
dmm.FUNC_RESISTANCE
dmm.FUNC_ACV_FREQUENCY
dmm.FUNC_AC_VOLTAGE
dmm.FUNC_4W_RESISTANCE
dmm.FUNC_ACV_PERIOD
dmm.FUNC_DC_CURRENT
dmm.FUNC_DIODE
dmm.FUNC_DCV_RATIO
dmm.FUNC_AC_CURRENT
dmm.FUNC_CAPACITANCE
dmm.FUNC_DIGITIZE_CURRENT
dmm.FUNC_TEMPERATURE
dmm.FUNC_CONTINUITY
dmm.FUNC_DIGITIZE_VOLTAGE
Details
Reads the actual amount of current that is sourced by the instrument when a measurement is made.
For the 1
Ω
to 1 M
Ω
ranges, a constant current source is used to calculate resistance. The
dmm.measure.bias.actual
attribute returns the calibrated current for the programmed range. For
the 10 M
Ω
to 1 G
Ω
ranges, the Model DMM7510 uses the ratiometric technique. Ratiometric ohms
measurement has lower noise and better repeatability for testing devices at ranges greater than
1 M
Ω
, but has variable current through the device under test (DUT). The
dmm.measure.bias.actual
attribute returns the ideal maximum current when the DUT is at 0
Ω
(0.69 µA).
Example
print(dmm.measure.bias.actual)
Read the actual bias level.
Also see
(on page 8-138)