Applications
Leuze electronic GmbH + Co. KG
BPS 307i
29
5
Applications
Wherever systems are moved automatically, it is necessary to uniquely determine their respective posi-
tions. In addition to mechanical measuring sensors, optical methods are particularly well suited for position
determination as they can be used to determine position without mechanical wear and slippage.
Compared to common optical measurement techniques, the Leuze Bar code Positioning System (BPS) is
able to measure a position with absolute sub-millimeter accuracy, i.e. independent of reference points. As a
result, it is able to provide a unique position value at any time. With the highly flexible and hard-wearing
Bar Code Tape (BCB), the system can even be used without problem in systems with curves or guide toler-
ances. And this at lengths of up to 10,000 meters.
The product family of Leuze bar code positioning systems convinces with a variety of advantages:
• The laser simultaneously scans three bar codes and, as a result, is able to determine the position with
sub-millimeter accuracy. The wide reading field makes accurate position determination possible even in
the event of minor damage to the tape.
• With the systems' flexible depth of field, it is also possible to bridge over mechanical deviations.
• Due to the large reading distance combined with the great depth of field, a large opening angle and a
very compact construction, the device is ideally suited for the conveyor and storage technology market.
• The BPS devices are capable of simultaneously measuring position and speed and are thus also suit-
able for control tasks in your automation applications.
• Using a mounting device, the BPS can be mounted with millimeter accuracy with just one screw. If
mounted using a mounting device, a new device is automatically aligned correctly should it be neces-
sary to exchange a device (easy-mount).
• The unique encoding of the position value on the bar code tape allows the system to be put back into
operation without problem even after a brief voltage drop without, e.g., needing to utilize a reference
point.
• The Leuze bar code tape is very robust, highly flexible and, thanks to the self-adhesive back, can be
easily integrated into your overall mechanical system. It can be fit optimally to both vertical as well as
horizontal curved paths and thereby reliably facilitates trouble-free and reproducible measurement at
any point in your system with sub-millimeter accuracy.
Typical applications for the BPS include:
• High-bay storage device (see chapter 5.1 "High-bay storage device")
• Electrical monorail system (see chapter 5.2 "Electrical monorail system")
• Gantry cranes (see chapter 5.3 "Gantry cranes")
