5-6
Sweep Operation
Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006
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Thus, the five log steps for this sweep are 0, 0.25, 0.50, 0.75, and 1.00. The
actual SourceMeter levels at these points are listed in
(the voltage level
is the anti-log of the log step).
Table 5-1
Logarithmic sweep points
Measure
point
Log step
Source level
(V)
Point 1
Point 2
Point 3
Point 4
Point 5
0
0.25
0.50
0.75
1.0
1
1.7783
3.1623
5.6234
10
When this sweep starts, the output will go to the start level (1V) and sweep
through the symmetrical log points. The time duration before each measurement
at each step is determined by the measurement delay interval.
Pulse sweeps
A fixed pulse sweep outputs fixed voltage or current pulses. Programmable
parameters with this function include the sourcing function, the bias level, the
pulse level, the number of pulses, the pulse on time, the pulse off time, and which
SourceMeter channel is used (A or B).
When this sweep executes, the output will go from the bias level to the “on” level
of the first pulse. The time duration at each pulse level is determined by the
programmed on time while the period between pulses is determined by the
programmed off time.
An example of a simple three-point pulse sweep is shown in
. Note that
the programmed pulse on time determines the pulse width, and the pulse off time
is the time between pulses. The level is the same for each pulse.
Summary of Contents for SourceMeter 2600 Series
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