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Wire & Cable ASIA – July/August 2010 39
Quality control for
data cable production
The Centerview 8000 from Sikora is designed to deliver non-contact continuous measurements of 8-point eccentricity,
4-axis diameter and 8-point ovality during the production of data cables. The online repeatability and accuracy of these
non-contact measurements provide optimum control and productivity on today’s production lines at all line speeds.
A feature of the Centerview is the automatic positioning of the
gauge head to the cable position. With this design, guide rollers
are not required to achieve precise single measuring values,
even at the micron level. Centerview 8000 records the single
measuring values with highest precision. These are displayed
at 4-points (diameter) and 8-points (eccentricity, ovality) on the
processor system Ecocontrol 600, 1000 or 2000. Instantly, the
operator has clear information about eccentricity values that can
be used for control or crosshead adjustments.
Centerview 8000 is available as a stand-alone gauge head
with direct connection to a control system or a data collection
system for SPC (statistical process control). It can be combined
with the processor system, Ecocontrol, for constant accurate
online measurement and control. The cloud diagram provides an
additional way to present the measuring values of the ongoing
measurement at the Ecocontrol. It provides information on
distribution of short-term variation of eccentricity in graphical
form. Each dot corresponds to one single measuring value of the
eccentricity in relation to the amount and angle. The extension of
the cloud diagram is the indicator for the standard deviation of
the eccentricity.
The display of the single eccentricity values in the cloud diagram shows the operator what eccentricity values remain and
what fluctuation the product has, even after a perfect centring. This visualisation of the single values provides an option for
the operator to take appropriate measures to minimise the eccentricity.
Sikora AG – Germany Fax: +49 421 48900 90 Email: Website:
The circular distribution of the single values of the eccen- ❍
tricity helps to optimise the extrusion process with regard to
a minimum standard deviation
Testing LAN, telecom, umbilical and
coaxial cables
DCM provides test and measurement solutions for quality assurance testing of all types of twisted pair and coaxial cables.
Test parameters include crosstalk, impedance, insertion loss (attenuation), VSWR, capacitance, resistance, return loss and SRL.
LAN cable test solutions covering Cat 5e, Cat 6, augmented Cat 6 and Cat 7
cables up to 1.5 GHz include:
Model SCS-350B bench-top system for Cat 5e and Cat 6 cables
•
Model CMS-2XLD integrated system for Cat 5e, Cat6A and Cat 7, including •
6-around-1 alien crosstalk and power sums
Model ES-2G bench-top system for Cat 7 cables •
RF and coaxial cable test solutions cover all types of coaxial cables for 50-ohm
and 75-ohm cables, for 3G to aerospace applications. Test frequencies range from
3 GHz up to 40 GHz.
Telecom cable test solutions cover all types of twisted pair telecom cables with
test fixtures up to 102 pairs. LF parameters include capacitance, resistance and
cable unbalances. HF parameters include crosstalk and attenuation, as well as
xDSL applications up to 100 MHz.
Umbilical cable test solutions provide measurements for offshore umbilical cables
and include automated testing of all required electrical parameters on very long
cable lengths.
DCM Industries Inc – USA Fax: +1 510 670 7212
Email: Website:
COAX-3000 ❍
automatic
coaxial
cable tester