4-7
Positional Deviation Measurement
4
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.
- 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 [TYPE MEAS COND] menu, select the "1P-SCH" or "1P-SCH+1P-EDGE" mode and then
select the "
3
DTECT ANGL" item.
-
See page 4-2.
1. Select the "1P-SCH" or "1P-SCH+1P-EDGE" mode.
2. Select the angle search range (
±
15˚,
±
30˚,
±
45˚,
±
360˚) on the "
3
DTECT ANGL" item.
The larger the angle search range, the slower the processing will be.
3. Select a rotation step size in degrees in "
4
ANGLE UNIT," using the up and down keys.
The relationship between the detection range (unit) of the rotation angle and the reference
images to be created is shown below:
* When "YES" is selected on the
DTECT ANGL item, the "HIGH"
mode selection on the "DTECT
PRECISION" item will be
disabled.
(The detection precision is fixed
at STANDARD.)
×
△
○
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.
Object shape
Difficulty level
[TYPE MEAS COND]
[MEAS COND]
4
MEASURE 0 CAM1 POSI-DEVIATION
(MEAS-COND) NO
1
DTECT PRECISION
STANDARD
HIGH
2
REGISTER NO.
0(0~7) 1P-SCH 2P-SCH
1P-EDGE 2P-EDGE 1P-SCH+1P-EDGE
3
DTECT ANGL
NO
YES( +15 +30 +45 360 )
4
ANGLE UNIT
10
5
MDL 0
6
MDL 1
NUMERIC CALC
OPS-MENU RETURN LOCK EVALUATION DST&ANGL NUM-CALC OUT-COND
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15
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