Sharp IV-S30J User Manual page 98

Positional Deviation Measurement
Angle detection
You can detect the angle of an object by selecting 1P-SCH (1-point search) in the POSI-DEVIATION
item (measurement 0 to 4) .
(1) Angle detection by object shape
There are some objects whose angle cannot be detected, due to the shape of the object and the
compression level used for the gray scale search, as shown in the table below.
Object shape
4
- The information given above is true when the measurement conditions are as follows: the size of
the reference image to be registered is approximately 64 X 64, and the search size is approximately
100 X 100.
(2) Setting method
On the [MEAS CND] screen, select the "1P-SCH" or "1P-SCH+1P-EDGE" mode on the "
and then select the "
MEAS CND
1DTECT PRECISION STANDARD
2
3
1
4DTECT ANGL
2
5ANGLE UNIT
3
6
7
SET=SELECT A MENU FOR ESC=BACK SEL=CHNG IMG TRG=FUNC
1. Select the "1P-SCH" or "1P-SCH+1P-EDGE" mode on the "
2. Select the angle search range (±15˚, ±30˚, ±45˚, ±360˚) on the "
the angle search range, the slower the processing will be.
3. Select a rotation step size in degrees in "
relationship between the detection range (unit) of the rotation angle and the reference images to
be created is shown below:
R t o t a o i
D e e t t c
a r n g
± 1 ˚ 5
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Angle detection
The angle cannot be detected.
The angle can be detected using a
compression level of 2 for the gray
scale search.
The angle can be detected.
DTECT ANGL" item.
SCREEN COND SAVE
0(0 7)
1P-SCH
NO
n a n g e l
o i n
U n t i
e
1 1 - , 7 1 - , 6 1 - , 5 1 -
3 2 - , 1 1 - , 8 1 - , 5 1 -
5 2 - , 5 2 - , 0 1 - , 5 1 -
1 0 1 - , 5 1 - , 0 , 0 + 1
Difficulty level
See page 4-2.
F C1 BRT
STANDARD
HIGH
NO
Note: When the rotation angle detection is set other
1P-SCH
than "NO," the "HIGH PRECISION" selection
2P-SCH
will be invalid. (The detection precision is fixed
1P-EDGE
to the "STANDARD.")
2P-EDGE
1P-SCH+1P-EDGE
NO
ANGLE UNIT," using the up and down keys. The
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
, 4 • • • • • • • • + 1
, 2 • • • • • • • • + 1
0 - , , 5 , 0 + , 5 + 1 , 0 + 1 , 5 + 2
, 0 + 1 5
4-12
MODE".
DTECT ANGL" item. The larger
c e r a e t d
Q u a n
, 4 + 1 , 5 + 1 , 6 + 1 7 3 5
, 2 + 1 , 5 + 1 , 8 + 2 1 1 5
, 0 + 2 5 1 1
5
MODE"
i t y t