Omron F250-UME Software Manual page 222

Circle Position Compensation
Changing to Other Modes (Clearing Settings)
2-9-1-4 Circular Angles
1
Set mea-
surement
conditions.
2-9-(19)
Element Sizes and Comparing Pitch
When a region is drawn on the circumference, a box (element) is automatically
drawn inside the region. The density of each element is calculated and the
position of defects is detected by comparing the element with surrounding ele-
ments and looking at differences in densities.
Element
The settings must be cleared before changing to another mode.
The settings method is the same as for Not Rotate. Refer to page 2-9-(8).
Another circle is drawn in addition to the circle for external positioning. A char-
acteristic feature on the circumference of the new circle can be used for posi-
tion compensation in the rotation direction.
2 3
Register Set search
model. region.
Comparisons
The densities of neighboring elements are compared
and the difference in density becomes the element
defect value for the element with the greater density.
The element with the largest defect value is recognized
as the characteristic portion for rotation positioning.
Element size (4 to 80) (Default: 10)
Comparing pitch (1 to 6) (Default: 4)
Characteristic
feature is the
reference
position.
4
Set
judgement
conditions.
Section 2-9
(As required)
5
Set
detailed
conditions.