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Technical Discussions
Roderick Banks
Roderick Banks
07:28 Sep-09-2005
thickness of composite sandwich walls.

Hi Guys,
I'm an engineer working for a company which builds luxuary cruisers. We are looking for a NDT method for testing the wall thickness of a boat hull. The thickness range I wish to measure is between 5mm and 70mm. We have tried Ultra-sound, but found it complicated to use, and it could not measure through a sandwich structure. I've heard there are electomagnetic/inductive/eddy curent devices where by a piece of metal is placed on the opposite side of the hull.
If anyone has any information of a thing like this that will measure the thickness of a composite sandwich, could they please forward me the supplier details and any information.

Our Sandwich structures are typically balsa or pvc foam with polyester/glass fibre skins.

I'm based in Australia


 
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Trevor Easton
Trevor Easton
04:43 Sep-09-2005
Re: thickness of composite sandwich walls.
----------- Start Original Message -----------
I've heard there are electomagnetic/inductive/eddy curent devices where by a piece of metal is placed on the opposite side of the hull.
: If anyone has any information of a thing like this that will measure the thickness of a composite sandwich, could they please forward me the supplier details and any information.
: Our Sandwich structures are typically balsa or pvc foam with polyester/glass fibre skins.
: I'm based in Australia
------------ End Original Message ------------

Kaman (kamansensors.com) make eddycurrent devices that measure the displacement of metallic samples. These can be used to measure the thickness of plastic or FRP components.



 
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