NanEye
NanEye Viewer Software
Eval Kit Manual
• PUBLIC
UG001036
• v3-00 • 2022-May-31
43
│ 31
●
Step Size
●
The speed that the algorithm will converge to the target value. If this value is high, then
the algorithm will converge faster, but if the value is too high, the system can become
unstable, due to a high overshoot. If the value is too low, it will become very slow to
converge to the current illumination conditions.
●
A compromise must be performed between this value and Hysteresis.
Figure 41 and Figure 42 presents an example of images where the target value is 250 DN and 395
DN, respectively, having the same Region of Interest, Hysteresis and Step Size values presented in
Figure 40. When AEC is deactivated, the sensor gain and exposure values, from the algorithm, are
maintained.
Figure 41:
AEC with Gain 1 and Exposure 200
Figure 42:
AEC with Gain 3 and Exposure 222
Attention
Gain and Exposure registers cannot be changed manually if Automatic Exposure Control (AEC) is
selected in Automatic Control tab.
The NanEye2D (please refer to NanEye Datasheet
– NanEye_DS000501) and Evaluation Kit registers
can also be changed on Expert Registers tab, setting directly the respective value.
