Patent ID: 9128027
Filing Date: 2015-09-08
Classification: G01N

Abstract:
1. An apparatus for detecting inhomogeneities in panels, of the type suitable to be used for panels ( 1 ) in transit along a processing line and comprising a plurality of sound wave emitting devices ( 2 ), operating from one side of the panel ( 1 ) in transit, and a plurality of sound wave receiving devices ( 3 ), operating from the opposite side of the same panel ( 1 ) at a pre-established distance from the emitting devices ( 2 ), characterised in that said receiving devices ( 3 ) are situated at the ends of a plurality of channels ( 30 ), which are disposed in alignment with the respective emitting devices ( 2 ), are set side by side at a short distance from one another and have their other ends near to said panels ( 1 ); each of said channels ( 30 ) extending between its respective receiving device ( 3 ) and the panel ( 1 ) in transit and being formed in an external structure comprising a set of partitions or layers ( 31 ) spaced apart from each other and placed one on top of the other successively at pre-established distances, further characterized in that between at least two of said partitions or layers ( 31 ) there is interposed a sheet of solid material ( 32 ) in which there are formed holes ( 33 ) for defining the area of free passage of the waves of said emitting devices.