User`s manual
Table Of Contents
- Safety Precautions
- Table of contents
- Chapter 1: Outline
- 1-1 Features
- 1-2 Controller
- 1-3 Measurement program
- [1] Positional deviation measurement
- [2] Degree of match inspection
- [3] Lead inspection
- [4] BGA/CSP inspection (IV-S32M/S33M)
- [5] Area measurement by binary conversion
- [6] Object counting by binary conversion
- [7] Object identification by binary conversion
- [8] Point measurements
- [9] Distance and angle measurement
- [10] Multiple position measurement (IV-S33M)
- [11] Multiple degree of match inspection (IV-S33M)
- Chapter 2 : Precautions for Use
- Chapter 3 : System Configuration
- Chapter 4 : Part Names and Functions
- Chapter 5 : Connection and Installation Methods
- Chapter 6 : Setting and Operating Outlines
- Chapter 7 : Simplified Menu Operation
- 7-1 Operation screen
- 7-2 Image display
- 7-3 Setting functions that are different with each controller
- 7-4 Setting procedures
- 7-5 Setting the operation conditions
- 7-6 Setting object types
- 7-7 Setting the shutter speed
- 7-8 Setting the positioning conditions
- 7-9 Setting the existence inspection conditions
- 7-10 Measurement triggering
- 7-11 Saving data
- 7-12 Specify the system conditions
- Chapter 8 : Specifications
- Chapter 9 : Operation Examples
- Glossary
- Appendix
- Alphabetical Index
7-21
Simplified Menu Operation
7
ËË
ËË
Ë Threshold value setting
The IV-S30 treats the "areas darker than the lower limit value" or "brighter than the upper limit value"
as "black." It treats that the areas between the upper limit value and lower limit value as "white."
However, if the white-black reverse function is enabled, conversion to white/black will be reversed.
Normally, if you want to use only one threshold value for binary conversion, set the upper limit value to
"255." Then you only need to adjust the lower limit value to a threshold value that works for your
application.
An example of adjustment is shown below, using a white object on a black background. When the
dotted line in the window is converted to a binary image, if the lower limit is set higher, the black part in
the binary image will become larger. If the lower limit is set lower, the white part will become larger.
Increase and decrease the lower limit value, find the value at which the white part in the binary image
starts growing and the value at which the black part starts growing. Then set the lower limit at the value
halfway between these points. This will ensure reliable operation.
13. Move the cursor to the "4 INVERT B/W" item
using the up and down keys, and press the SET
key.
14. Move the cursor to "NO" or "YES" using the left
and right keys, and press the SET key.
- Since only the number of white pixels can be
measured, select "YES" if the object is black.
(Captured image)
Threshold value B
Threshold value A
Binary conversion
(Threshold value)
Binary conversion
(upper limit = A,
lower limit = B)
255
(Threshold value)
Lower
limit A
B
0
Black
White
255
(Threshold value)
Upper
limit A
Lower
limit B
0
Black
Black
White
255
(Threshold value)
A
Lower
limit B
0
Black
White
(Upper limit = 255, lower limit = A)
(Upper limit = 255, lower limit = A)
4INVERT B/W NO YES
OPS-MENU
Measurement window
Object to be measured
Inversion: NO
Inversion: YES
White
Inspection image
Horizontal coordinate
of the dotted line
Changing the lower limit threshold value
The size of the white area changes
depending on the threshold value setting.
As the value increases,
the black part grows larger.
Stable range
As the value decreases,
the white part grows larger.
0
255
White
*
*
Black
Lower limit threshold
If the stable range in the lower limit threshold
value is less than 20, (actual measurement)
measurement errors may occur.