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Tektronix KEITHLEY 2600B Series User Manual

Tektronix KEITHLEY 2600B Series
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Series 2600B System SourceMeter® instrument Reference Manual Section 9: TSP command reference
2600BS-901-01 Rev. F/August 2021 9-225
smuX.measure.filter.type
This command sets the type of filter used for measurements when the measurement filter is enabled.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Attribute (RW)
Yes
Instrument reset
SMU reset
Recall setup
Saved setup
1 (smuX.FILTER_REPEAT_AVG)
Usage
filterType = smuX.measure.filter.type
smuX.measure.filter.type = filterType
filterType
The filter type to use when filtering is enabled. Set to one of the following values:
â–ª 0 or smuX.FILTER_MOVING_AVG: Selects the moving filter
â–ª 1 or smuX.FILTER_REPEAT_AVG: Selects the repeat filter
â–ª 2 or smuX.FILTER_MEDIAN: Selects the median filter
X
SMU channel (for example, smua.measure.filter.type applies to SMU
Channel A)
Details
The 2600B provides a moving average, repeating average, and median filter type.
For the repeating filter, the stack (filter count) is filled, and the conversions are averaged to yield a
reading. The stack is then cleared, and the process starts over.
The moving average filter uses a first-in, first-out stack. When the stack (filter count) becomes full, the
measurement conversions are averaged, yielding a reading. For each subsequent conversion placed
into the stack, the oldest conversion is discarded. The stack is re-averaged, yielding a new reading.
The median filter uses a first-in, first-out stack. When the stack (filter count) becomes full, the reading
nearest to the middle is returned. For each subsequent conversion placed into the stack, the oldest
reading is discarded. The stack is then re-sorted, yielding a new reading. If the filter count is an even
number, the reading returned is the average of the two middle readings.
Example
smua.measure.filter.count = 10
smua.measure.filter.type = smua.FILTER_MOVING_AVG
smua.measure.filter.enable = smua.FILTER_ON
Sets the filter count for SMU channel A to 10.
Sets the filter type to moving average.
Enables the filter.
Also see
Filters (on page 2-66)
reset() (on page 9-177)
setup.recall() (on page 9-197)
smuX.measure.filter.count (on page 9-223)
smuX.measure.filter.enable (on page 9-224)
smuX.reset() (on page 9-236)

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Tektronix KEITHLEY 2600B Series Specifications

General IconGeneral
BrandTektronix
ModelKEITHLEY 2600B Series
CategoryMeasuring Instruments
LanguageEnglish

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