EuroWire July 2015

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Technical article
July 2015 50
Still in laboratory conditions, a stainless
steel wire 0.38mm in diameter (15mils)
was moved and this generated marks or
scratches.
In both cases the blue line determines the
periphery of the defect. Unfortunately the
display is cut right on the top of the wire
where the marks are.
Nevertheless, it shows the computing
analysis that works all around the wire.
The surface quality of the wire can also be
seen. Image calibration must be made on
a smooth surface of the wires.
This is also a process to develop to be able
to deliver the reference wires.
The measurements are not sensitive to
the vibration of the wire. Nevertheless, the
independency has to be optimised to the
position of the wire.
Conclusions
This unique instrument is in its last
optimisation phase. All technological
issues are solved efficiently.
Cersa-MCI,
13480 Cabries,
France
Tel: +33 442 020 044
Fax: +33 442 027 979
Email:
Website:
The expectation once tests are complete
is to undertake marketing throughout this
year (2015). n
Paper courtesy of the 63rd International Wire
and Cable Symposium, Providence, Rhode
Island, USA, 10th to 12th November 2014.
▲ ▲ Figure 7: First case, one side inked mark. Reading at
25kHz
▲ ▲ Figure 8: Second case, one scratch on the surface.
Reading at 140kHz