Omron Healthcare ZFX-C - Manual (Page 4)

Including two shape measurement items, the system contains 5 categories and 9 types of
Shape, Size, Edge, Bright and Hue, Application measurement items.
It responds to the variety of inspection requirements in the manufacturing sites.
6 7
The individual threshold for the hue, saturation and brightness value
parameters can be set up so that even if one of them is different, it can be
detected accurately and intensely. On the other hand, by expanding the range
for the brightness value and saturation, and so on, it is possible to stabilize the
color detection in the hue without any interference from illumination alterations.
Based on the change in brightness, the
presense of a screw (OK or NG) is
determined.
In one captured image, it is possible to
measure a multiple up to 32 regions.
When carrying out difficult inspection, it is
possible to set-up a color filter and color
extraction for each measurement item.
Normal time When lowering illumination
Shape measurement item Bright and Hue measurement item Edge measurement item
Application specific measurement item Size measurement item
LED illumination is determined based on the area
of extracted color.
Measures three regions.
Up to 32 regions
Functions to support optimal measurements
For each measurement item, it is possible to
run 8 types of gray filtering such as
expansion and contraction to enable stable
measurements. Through the “setup while
looking” option that makes it possible to
check the preview, the optimal gray filtering
can be selected.
Gray filtering setup
using double screen
It is possible to register the image used in the setup. When you use the live
image during setup sometimes the set up is not correct due to position
differences in the work. However, with the registered image saved in the SD
memory card as a“master image for setup”, it can be easily verified when
abnormal measurements occur.
Screen registration function
It is possible to make arithmetical calculations for measurement values, and
calculations involving general functions, trigonometry, geometrical functions and
logical functions. It is possible to setup internal variables, and complex calculations
can be carried out.
Calculations function
Fastest in the industry
NEW
NEW
Almost indistinguishable
scratches can be detected
after enhancing contrast
using the color filter. Counts the number of
scratches
Cap
detection
by color
abstraction
Labeling
error
check
Smear
check
It is possible to detect even the smallest differences in the work.
NG OK
defective good
A further improvement is the balance achieved in revolving
searches that occur in pattern matching for a revolving
work. The most time-consuming 360-degree revolving
search can be performed with an excellent accuracy.
maximum
minimum
S m a r t s e n s o r
ZFX-C
Tailored
Measurement item
Pattern search
The shape measurement is a fundamental algorithm for image processing. By adopting a new
image processor, the pattern search achieves a balance in the three factors of speed,
precision and stabilization, something that
was an arduous task until now. It now
supports a 360-degree revolving search and
a sub-pixel processing of 1000 to 1 pixel
units as well as a multi area searcher. The
robust pattern search can respond to the
multitude of inspects and measurements of
any application.
Sensitive search
When it comes to the difficult processing of detecting small differences, the Omron's
unique sensitive search matches
work at a smallest detail and in doing
so makes such detection all the more
possible.It resists variations in
position and density to capture even
the smallest detail in the complex
patterns.
Hue
The three factors in color, i.e. hue, saturation and brightness
value, are measured and digitalized. And whilst an accurate
differentiation of the color is performed, it is also possible to
measure the color variety with the deviation measurement
function (with color camera connected).
Bright
Measures the brightness
within a region. It can be
used for checking the
presense of a component,
etc., by generating
average density and
density deviation values.
Position
The existence or not and the position
of the edge is measured. Oblique
edges can now be measured even in
complex conditions and even more
accurate position measurements can be taken. The peak
bottom measurement function that can accurately capture
the edges is now supported.
Width
The width of the edge is measured.
By using the edge partitioning
method, it is possible to measure the
maximum and minimum width.
Count
The number of edges inside the area
is counted. Based on the number of
edges on the pre-registered good
model, it counts the edges in the
area and determines the correctness.
Region
Detects the existence of work within a
region and measures its size based on
the area to perform various
classification.
Defect
It is used to detect smears, scratches,
chipping and burrs on the work. Defects
are displayed on the screen, which makes
it ideal tool for visual inspection.