Configuration
Leuze
electronic
110
Technical Description BCL 90
Leuze electronic
9
Configuration
9.1
Calculating of Parameter Values for Setting the BCL
9.1.1 Calculating the Number of Scans (for Standard Decoder)
The maximum number of scans for a bar code depends on the transport speed.
Line scanner: ladder-type bar codes
Figure 9.1: Line scanner: calculation example of the number of scans for ladder-type bar codes
v
I
S
Line scanner: lateral reading of object
Specifications:
Number of scans n =?
Transport speed v = 1.5 m/s
Code length l
C
= 20 mm
Scanning frequency f = 600 Hz
Bar code 100% reading rate
Calculations for
standard decoder!
n
0 02m
,
1 5
m
s
-----
,
------------------
600
s
----------
¼
=
t
scan
1
f
---
=
n
I
s
v
----
f
¼
=
v
s
t
---
=
v
I
s
n t
s ca n
¼
-----------------------
=
v
I
s
n
----
f
¼
=
n
8
=
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