| 摘要 |
<p>The invention relates to a device for contactless testing of structural and/or surface defects of large-surface bodies, especially of slab-shaped materials (referred to in the following as 'test bodies'). Said device comprises a conveyor device (1) for the test body (2) which is provided with a stationary zone (3) which is support-free in relation to the test body (2) to be conveyed. The device is further provided with a source of heat (4) that is arranged stationary above the plane of conveyance, extends transversally in relation to the direction of conveyance (F) and radiates the heat in lines or strips onto the plane of conveyance. A thermographic camera (5, 6) is also provided that has at least one camera line which is aligned transversally to the direction of conveyance (F). Said thermographic camera is arranged after the source of heat (4) in the direction of conveyance (F). It is provided above the plane of conveyance as a stationary unit and is directed to the plane of conveyance. Said thermographic camera (5, 6) is connected to a computer (7) which has a monitor (8) and which generates a separate heat image pattern from every camera line.</p> |
