Keithley 6430, Инструкция по эксплуатации

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5-8 Source-Measure Concepts
Sweep waveforms
There are four basic sweep types to select from: linear staircase, logarithmic staircase, cus-
tom, and source memory. Three of the sweeps are shown in Figure 5-3. The linear staircase
sweep goes from the start level to the stop level in equal linear steps. The logarithmic staircase
sweep is similar except it is done on a log scale with a specified number of steps per decade.
The custom sweep lets you construct your own sweep by specifying the number of measure
points and the source level at each point. For a source memory sweep, up to 100 setup configu-
rations can be saved in memory. When the sweep is performed, the setup at each memory point
is recalled. See Section 9 for more details on sweep operation.
An SDM cycle is performed on each step (or point) of the sweep. Thus, one measurement
will be performed at each step (level). The time spent at each step (level) depends on how the
SDM cycle is configured (i.e., source delay, measure speed) and the trigger delay (if used).
Bias
Start
Stop
Linear Staircase Sweep
Bias
Start
100
Logarithmic Staircase Sweep
Bias
First Point
Custom Sweep
Last Point
10
1
0.1
Stop
Logarithmic scale
shown for staircase steps
Figure 5-3
Three basic sweep
waveform types