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EP 1 464 958 A3
EUROPEAN PATENT APPLICATION
(12)
(88) Date of publication A3:
(51) Int Cl.:
G01N 29/22 (2006.01)
01.09.2010 Bulletin 2010/35
G01N 29/11 (2006.01)
(43) Date of publication A2:
06.10.2004 Bulletin 2004/41
(21) Application number: 04007734.9
(22) Date of filing: 31.03.2004
(84) Designated Contracting States:
(72) Inventors:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR
HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK
(30) Priority: 31.03.2003 PT 10293403
(71) Applicant: IPN Instituto Pedro Nunes- Associaçäo
para a
Inovaçäo e Desenvolvimento da Ciência e
Tecnologia
3030-199 Coimbra (PT)
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• Mouta Dias, Joao Paulo
3020-114 Coimbra (PT)
• Sergio de Jesus, Engracia Cristina
3000-184 Coimbra (PT)
• Dos Santos, Jaime Batista
3030-250 Coimbra (PT)
(74) Representative: Pereira da Cruz, Joao
J. Pereira da Cruz, S.A.
Rua Vitor Cordon, 14
1249-103 Lisboa (PT)
Method and equipment for the automatic inspection of flat materials (sheets)
the ultrasonic signals propagation technology along the
surface in analysis, allowing the detection of defaults
present on the surface and in the interior, through the
signs processing, analysing the amplitude variation of
the received signals.
The system was particularly developed for the analysis of ceramic materials, under the form of floor tiles or
wall tiles, but may be adapted to any material that has
the previously mentioned characteristics.
EP 1 464 958 A3
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The present invention refers to a method and
automatic inspection equipment of flat materials
(boards), with a regular shape, homogeneous structure,
low thickness and flat surface, as long as the material
allows the propagation of ultrasonic signals.
The invention allows characterising in real time the
product or material to be inspected, by its implementation
in a productive line without changing the previous
processing times. The inspection procedure is based on
Printed by Jouve, 75001 PARIS (FR)
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