MV-9_Chapter 5. Teaching.pdf - 第130页
MV -9 Use r Manual 5- 130 Common parameter : binarization [Figure 5- 145 RB color plane and binariz at ion p arameter ] - Color ratio Di splay color of ax i s of which blue (Blue) is 25 5 or red (Red) i s 255 at RB c…
错误!使用“开始”选项卡将 제목 2 应用于要在此处显示的文字。错误!使用“开始”选项卡将 제목 2 应用
于要在此处显示的文字。 .
5-129
Normal condition: lead amount – average value > – average value comparison lowest limit
Adjacent lead comparison lowest limit: activated when comparison inspection is
checked. This function is to compare with amount of adjacent lead (white pixel ratio).
Set min value of lead amount difference between lead to judge as good.
Normal condition: lead amount – adjacent lead amount > – adjacent lead comparison lowest limit
Comparison inspection will be conducted for difference between lead fillet and lead of
which pad is defect. If both of average value comparison and adjacent lead comparison
are all normal, judge as good.
Color parameter
- Check at color binarization to activate this function. Color map and binarization for fillet
and pad can be adjusted.
- If lifted inspection is not selected, set only color map for fillet. To conduct lifted inspection,
adjust color map for both of fillet and pad.
- Color map adjustment adjusts color, saturation and luminance for good solder separation.
To adjust luminance, manually select binarization method for white parameter.
- Preview image displayed in the screen is preview image of fillet or pad selected on color
tap.
[Figure 5-144 color parameter setting]
14) Parameter of solder amount inspection (advanced inspection)
- Solder amount inspection (advanced inspection) inspects insufficient solder/no solder,
lifted inspection of each area by separating to lead, fillet and pad through color inspection.
- For solder amount inspection (advanced inspection), use lead tap, fillet tap, and pad tap.
Use horizontal + vertical light image.
MV-9 User Manual
5-130
Common parameter: binarization
[Figure 5-145 RB color plane and binarization parameter]
- Color ratio
Display color of axis of which blue (Blue) is 255 or red (Red) is 255 at RB color plane.
- Binarization boundary value
Display all colors of axis relevant to color ratio in RB color plane.
Lead parameter
[Figure 5-146 solder amount inspection setting_lead]
- Use lead inspection
This option is to set whether to use lead part inspection
- Lead color
This option is to judge color of lead part
- Min color ratio - (%) and max color ratio + (%)
RB Color Plane
Red
Blue
错误!使用“开始”选项卡将 제목 2 应用于要在此处显示的文字。错误!使用“开始”选项卡将 제목 2 应用
于要在此处显示的文字。 .
5-131
Judge min or max color ratio of red and blue to color of lead part.
In case occurrence of lifted lead, detect lifted defect using the characteristic of which
color of lead color inspection area different from normal.
If each lead color exceeds min color ratio and max color ratio to average based on
average color of all lead, judge as defect. For example, if average color of 4 lead is 50,
the following is normal range calculation, and lead color normal range is 40 ~ 50.
Min = 50 – 50ⅹ40% = 30, max = 50 + 50ⅹ20% = 60
[Figure 5-147 lead color inspection area and defect example]
- Color matching ratio (%)
Color matching ratio means matching ratio of each lead to created reference model
after reference model of all lead color distribution for inspection area.
In case of occurrence of lifted lead, color matching ratio detects lifted defect using the
characteristic of which color distribution in area from lead shoulder to lead tip different
from normal.
In case matching ratio of each lead is below setting value, judge as defect. min
matching ratio = 0%, max matching ratio = 100%.
[Figure 5-148 lead color matching ratio inspection area and defect example]