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Under the surface

Aperio director Simon Brightwell reckons the most important development since the Concrete Society Guide was drafted is the ability to remove the surface pulse - that part of the radar signal that reflects back from the concrete surface without penetrating further. This usually masks returns from the first 40mm-50mm, and by eliminating it during the signal processing phase Brightwell says a new clarity of visualisation up to 70mm is now possible.

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