Nordson_EFD_OptiSure_Operating_Manual - 第18页

OptiSure Automated Optical Inspection 18 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Gravity Point Example Gravity Point is an OptiS…

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OptiSure Automated Optical Inspection
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AOI Arrow Window Elements (continued)
Using the Arrow Types (continued)
Parameter Applicability Description
Pixel Avg.
All arrow types Averages the pixel density, allowing higher accuracy
when the system searches for the mark.
Center
checkbox
All arrow types If enabled, the system attempts to use the mark
image to center the camera over the mark before
acting upon the data specified in an arrow feature. By
default, Center is deselected.
NOTE: Most arrow features also attempt to center a
mark, so enabling this feature might cause the system
to center the camera twice: Once using the mark
image in the mark library and then again using the
arrow feature.
ALL
checkbox
All arrow types If checked, the system adjusts any changed settings
for all the arrows. By default, ALL is deselected. This
setting must be selected before any other changes
are made in an AOI Arrow window.
Max and Min
checkboxes
Circle Center,
Mea. Point To
Line, Mea. Width
If checked, you can enter values to specify maximum
and minimum values for the selected arrow Type.
Circle Center
parameters
Gravity Point
parameters
Intersect Line
parameters
Measure Point to Line
parameters
Measure Width
parameters
OptiSure Automated Optical Inspection
18 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
Gravity Point Example
Gravity Point is an OptiSureAOI feature that allows you to create two Fiducial Marks in the center of a line, one at
the beginning of the line and the other at the end of the line. Then, if a subsequent dispense must be made on a line
that is thicker or thinner, the system can dispense through the center of that line using the Fiducial Mark offsets.
PREREQUISITES
To learn how to use this feature, draw two lines of different thicknesses on a sheet of white paper and use it as a
workpiece template.
Using the Arrow Types (continued)
To Create a Gravity Point Mark Image
# Click Step Reference Image
1
>
• Click CAMERA > SETUP and enter a
lower score for SENSE (1 is used in
this example).
NOTE: You may need to adjust this
value based on the results as you
work through this procedure.
2
>
>
1.
2.
>
• Jog the camera to a location near
the beginning of the thicker line.
• Click SET MARK, then click and
drag the red box (item 1) over the
line.
• Double-click the crosshairs in the
center of the red box (item 2) and
then enter the desired values for
Width and Height (20 and 60 in this
example).
• Click OK to save the values.
3
>
• Click a socket in the Mark Library to
save the mark, then click TEMPLATE
when the Template Match window
appears.
The system saves the image in the
Mark Library.
Continued on next page
OptiSure Automated Optical Inspection
19www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.
# Click Step Reference Image
4
> >
>
>
• Click RANGE to set where the
system searches for the mark.
• Double-click on the crosshairs in the
center of the mark and enter Width
and Height values (20 and 480 in this
example).
NOTE: The Width value must be
the same as the Width specified in
step2 on page18.
• Click OK.
• Click RANGE again to save.
5
>
• Click the ARROW icon.
• In the Primary View screen, right-
click and select ADD NEW ARROW.
The system adds an arrow to the
screen.
6
3.
4.
5.
• Repeat step 5 to add another
arrow, and then use the mouse to
manipulate the arrows so they form
an array, as shown.
- To move the entire arrow, click
and drag the middle box (item4).
- To elongate or shorten the arrow,
click and drag the arrow (item5)
or the end box (item3).
7 • Right-click on the middle box of an
arrow and then select PARAMETER.
The AOI Arrow window opens.
Continued on next page
Gravity Point Example (continued)
To Create a Gravity Point Mark Image (continued)
Using the Arrow Types (continued)