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公开(公告)号：DE3633556A1
公开(公告)日：1987-04-09
申请号：DE3633556
申请日：1986-10-02
Applicant: BASF AG
Inventor： JUGENHEIMER ALFRED , LIMPERT ROLF , STEINHOFF UDO
Abstract: In a device for non destructively testing materials, for example highly stressed components made of fibre-reinforced plastics and other materials having strong ultrasound scattering, for very small defects by irradiation with ultrasonic waves, a diaphragm (3) is placed in front of the receiver test head (4). The diaphragm isolates the receiver test head (4) from laterally incident stray signals, substantially reduces the region of a component (2) under test at any instant and improves the detection capability for small defects as a result of the increased ratio of defect area to test region.
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