Omron ZX-GT -, User Manual

Page: 66 / 166

Adjusting Detection Conditions
ZX-GT User’s Manual
64
Edge Filter
The edge filter for judging the interrupted
beam section can be adjusted to suit your
specific measurement requirements and the
measurement object.
On the ZX-GT, the interrupted beam section
is judged according to how many continuous
pixels of the CCD's 2000 pixels in the
receiver are blocked. These continuous
pixels act as the edge filter. By adjusting this
number of edge pixels, you can prevent
noise and increase detection sensitivity.
1
Select the special setting.
2
Set the edge filter.
Setting value Description
3 to 7 (pixels) Set the number of pixels to function as the edge filter.
The setting differs according to the measurement mode.
• When the wire position measurement mode or glass edge
measurement mode is selected
3 to 7 (default value: 4)
• When another measurement mode is selected
7 (fixed)
Select [SPCL].
Select [M-LV] or [ALL].
Confirm the selection.
Select [EG.FLT].
Change the current value.
Confirm the selection.
CCD
CCD
E dge f il ter : 3
E dge f il ter : 7
A ll judged as i nterrupted beam sect i ons
Processed as no i se
T he Contro ll er becomes
more suscept i b l e to the
no i se .
T hough the Contro ll er
becomes more
suscept i b l e to the
i nf l uence of no i se,
the edge detect i on
sens i t i v i ty i ncreases .
Judged as i nterrupted
beam sect i on
SUB
SUB
zx_gt.book Page 64 Wednesday, May 30, 2007 3:29 PM