TPT September 2009

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Technology Update
56 September 2009 ›
Conventional length measuring devices
using the principle of frequency shift, the
so-called “Doppler-effect”, are suitable for the
measurement of flat materials such as paper,
steel sheet or textile. However, this technology
encounters difficulties for length measurement
of profiles with round or blank surfaces.
The technology of the PRECILENGTH
6000, which defines the length through
comparison of image patterns, is also
reliable for round products and for products
with blank surfaces.
Sikora AG – Germany
Fax: +49 421 48900 90
Email:
Website:
SIKORA has developed a system called
PRECILENGTH 6000 for non-contact online
measurement of lengths of hoses and tubes
and length measurement of extruded round
products. It assists by defining the product
profile and its movements and calculating the
speed and the produced length calculated.
In combination with two laser diodes, two
image sensors are positioned next to each
other. The product passes the first image
sensor, which defines the shadow of the
product shape. The exposure of the second
image sensor occurs when the product
shape, which has been recorded by the first
image sensor, passes the second sensor.
Hence, the characteristics of the shapes of
both sensors are identical.
The delay time for the exposure of the second
image sensor is calculated and controlled
adequately by the result of the correlation of
both characteristics of the contours. Thus,
PRECILENGTH 6000 exactly determines the
produced length of the hose or tube.
Length measuring system for
tubes and hoses
Italian tool
manufacturing
ABS UTENSILI, Italy, has been involved
in the field of tool manufacturing since
1975. The company says it has always
been committed to continuous technological
development and extending its range in
order to meet the needs of the mechanical
industries. The company is involved not
only in standard production, but also in the
developmentofpartsaccordingtocustomers’
designs. It claims that great attention is paid
to consulting, designing and processing, as
well as to ensuring prompt deliveries and
assistance by qualified technicians.
ABS Utensili selects raw materials
assessed according to quality criteria,
performance and long life. The company
then uses advanced machinery and the
latest generation NC equipment to provide
precise results.
ABS Utensili Srl – Italy
Fax: +39 0438 482076
Email:
Website: