Don't go off the rails
October 1st 2007 The new BPS 8 bar code
positioning system from
Leuze Mayser provides an
optical measuring method
for monitoring and
controlling the position of
rail-mounted industrial
trucks, overhead carrier
systems, hoists, rack
handling and similar
automatic transport systems
to an accuracy of ±1mm.
The BPS 8, which mounts
directly on the 'workpiece'
carrier, determines its
position relative to a bar code
on a plastic encoded tape
[BCB] which has a selfadhesive
backing
for easy application
to the carrier
gantry frame; it is
estimated that a
tape measuring
100m in length can
be positioned
around a path in
around 30 minutes. It allows
both vertical and horizontal
corners to be detected
without defining a preferred
assembly direction, which
adds to flexibility of tape
positioning around the path.
The new BPS 8 uses visible
red laser to scan the position
information encoded on the
BCB tape and with interfaces
such as PROFIBUS, SSI or RS
485 a newly calculated
position value is made
available to the higher level
control system every 2ms. More articles from Leuze electronic Ltd: | 
