| 摘要 |
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 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.
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