Sharp IV-C35M User Manual page 130

Positional Deviation Measurement
R t o t a o i
D e e t c i t
n a r n g
± 3 ˚ 0
4
± 4 ˚ 5
F l l u
a n g e l
4. On the settings for the gray scale search conditions (page 4-4), register the object by surrounding
it with a square window, regardless of the shape of the object to be measured.
Example
Image to register
When triggered to store the reference image, the system will store various views of the object in
memory by rotating the image, 10 degrees at a time.
When the angle range is set to
Reference image
5. Specify a search area that is large enough to include various positional deviations of the object.
6. When starting the measurement, the system will execute a gray scale search of the captured
image based on the stored reference images, which were created by rotating the basic image, 10
degrees at a time in step 3 above.
Captured
image
Note: When "NO" is selected for the "DTECT ANGL" (rotation angle detection) in the previous page
after registering the reference image, a "Reference image condition mismatch" error will occur
when executing the measurement.
n a n g e l
- o
U n t i
e
2 3 - , 4 3 - , 2 3 - , 0 2 -
3 3 - , 6 3 - , 3 3 - , 0 2 -
5 4 - , 0 3 - , 5 3 - , 0
6 4 - , 2 3 - , 6 3 - , 0
1 0 3 - , 0 2 - , 0 1 - , 0
3 5 - , 1 4 - , 8 4 - , 5
5 5 - , 5 5 - , 0 4 - , 5
1 0 4 - , 5 4 - , 0 3 - , 0
1 0 1 - 7 , 0 1 - 6 , 0 1 -
0
Reference image area
Search area
Degree of match
R e e f e r n c e i m a g e
R t o t a o i n a n g e l
8 • , • • • • • • • + 2
7 • , • • • • • • • + 2
2 - 5 • , • • • • • • • + 2
2 - 4 • , • • • • • • • + 2
, 0 + 1 , 0 + 2 , 0 + 3 0
4 - 2 • , • • • • • • • +
4 - 0 • , • • • • • • • + 4
2 - , 0 1 - , 0 , 0 + 1 , 0 + 2 , 0 + 3 , 0
5 0 • , • • • • • + 1 5 , 0 +
–
360˚ (Rotation angle unit : 10)
. . .
10 20
Define the position using the curve interpolation.
10 20 30 40
Degree of match curve
4-14
c e r a e t d
Q u a
, 8 + 3 , 0 + 3 , 2 + 3 4 3
, 7 + 3 , 0 + 3 , 3 + 3 4 2
, 5 + 3 , 0 + 3 , 5 + 4 0 1
, 4 + 3 , 0 + 3 , 6 + 4 2 1
4 , 2 + 4 , 5 + 4 , 8 + 5 1 3
, 0 + 4 , 5 + 5 , 0 + 5 5 2
+ 4 , 0 + 4 5 1
1 6 , 0 + 1 7 , 0 + 1 8 0 3
. .
180 -170
Rotation
50 60 70
angle
n i t y t
5
5
7
5
7
5
3
1
6
-10