Omron FQ2-S/CH Series, Руководство пользователя, Страница: 268 / 590

Inspecting with the Sensitive Search Inspection Item
266
FQ2-S/CH User’s Manual
Unstable Search Results
Inclined Measurement Objects
Adjust the [Angle range] parameter to increase the range in which a search is made for the model.
The Search inspection item judges whether an image is OK or NG according to the correlation with a
previously registered image pattern.
For this reason, if the object is at an angle, the correlation is reduced and the image may be judged as NG.
To achieve an OK judgment for the same image pattern even when the object is at an angle, the rotation range
must be widened.
[Inspect] −
[Inspection]
− [Sensitive Search] − [Modify] − [Details] Tab Page − [Model parameter]
1
Set [Rotation] to [Yes].
2
Press [Angle range] and set the following range.
Correlation Is Inconsistent Due to Low Contrast
Adjust the brightness to improve the contrast of the mark.
Adjusting the Brightness: p. 77
Correlation Is Inconsistent Due to Variations in the Measurement Object
Inconsistent portions can be masked so that they are omitted from matching.
Model masking: p. 226
Parameter Setting Description
Angle range
Range:
−
180 to 180
Default: Lower: − 180
Upper: 180
A search is performed within the set angle range.
The larger the angle range, the longer the processing
time.
If you change the angle range, perform teaching again.
p. 261
Important