DS4600A
3
3.1.1
Tilt Angle for Advanced Code Reconstruction
The most important parameter in Advanced Code Reconstruction is the value of the
maximum tilt angle (
α
maximum) under which the code reconstruction process is still
possible.
We define the Tilt angle as the angle (
α
) between the laser beam and a line parallel
to the barcode label, as shown in Figure 29.
α
Laser Beam
= tilt angle
α
0° to
α
max
Figure 29 - Tilt angle
The formulas to calculate
α
maximum depend on various parameters such as: label
height, number of scans per second, code motion speed, etc. To obtain
α
maximum
for your application, please contact your Datalogic representative.
You must remember that the decoder will be able to read the label with a tilt angle
b
α
max and -
α
max as shown in Figure 30 (the shaded zones are the NO
READ zones).
Laser Beam
α
-
+
α
0°
Figure 30 - Reading zones with
α
max
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