Re: Cracks detection in multilayers ceramic condenser

Ultrasound is a good way to test ceramic. You can compare it to
ceramics that do not have cracks in a short period of time. I do
believe you do not have to use water to test them. You will just need
two transducer and an ultrasonic tester.

"Frank Logullo" <frankDOTlogullo@xxxxxxx> wrote in message
news:RWyte.738$S17.98702@xxxxxxxxxxxxxxxxxxxxxx
>
> "Eole Bonneault" <Bonneole@xxxxxxxxx> wrote in message
> news:6debe201.0506200350.1311cabb@xxxxxxxxxxxxxxxxxxxxx
> > Hi,
> > I'm searching a way of test to identify cracked condensers on a
> > production line.
> > We use X7R ceramic with nickel electrodes condenser (size 0805)
which
> > are molded with epoxy resin.
> > I need a test I can insert on the production line (EM constraints
and
> > fast time of test).
> > Can somebody advise me ?
>
> Ultrasound often used for composites. Don't know speed of current
testers
> and think you have to immerse in water.
>
>


.

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