Keithley SourceMeter 2600 Series Reference Manual page 347

Series 2600 System SourceMeters Reference Manual
• There are two averaging filter types to choose from: Repeating and moving. For the
Remarks
repeating filter (which is the power-on default), 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
Details See "Filters" in
Also see smuX.measure.filter.count,
Selects the moving average filter for SMU A:
Example
smua.measure.filter.type = smua.FILTER_MOVING_AVG
smuX.measure.interval
Attribute Interval between multiple measurements.
Usage
interval = smuX.measure.interval
smuX.measure.interval = interval
interval
• This attribute sets the time interval between groups of measurements when
Remarks
smua.measure.count
start the measurement of each group when scheduled.
• If filtered measurements are being made, this interval is from the start of the first
measurement for the filtered reading to the first measurement for a subsequent
filtered reading. Extra measurements made to satisfy a filtered reading are not
paced by this interval.
• If the SMU cannot keep up with the interval setting, measurements will be made as
fast as possible.
• The
Details See "Triggering" in
Also see smuX.measure.overlappedY,
Sets measure interval for SMU A:
Example
smua.measure.interval = 0.5
function selects the repeat filter.
reset
Section 6.
smuX.measure.filter.enable
X = SMU channel (a or b)
Set interval (in seconds) from 0 to 1.
is set to a value greater than 1. The SMU will do its best to
function sets the measure interval to 0.
reset
Section 4.
Return to
Instrument Control Library 12-73
-- Reads measure interval.
-- Writes measure interval.
smuX.measure.Y
Section 12 topics 2600S-901-01 Rev. A / May 2006