Destruction-free and contactless inspection method and inspection apparatus for surfaces of components with ultrasound waves

摘要

The invention relates to a method of nondestructive and contactless testing of components (3), wherein ultrasonic waves (6) are irradiated onto the surface of the component (3) at a predefinable, non-perpendicular angle of incidence (9) using an ultrasonic transmission sound transducer (1) arranged spaced apart from the surface of the component (3) and the intensity of the ultrasonic waves (7) reflected from the surface of the component (3) is detected with time resolution and/or frequency resolution by the antenna array elements (2n) of an ultrasonic antenna array (2) configured for detecting ultrasonic waves (7) and the phase shift of the ultrasonic waves guided at the surface of the test body is determined therefrom with respect to the ultrasonic waves (7) directly reflected at the surface of the component (3).

主权项

1. A method of nondestructive and contactless testing of components (3), wherein ultrasonic waves (6) are irradiated onto a surface of a component (3) at a predefinable, non-perpendicular angle of incidence (9) using an ultrasonic transmission sound transducer (1) spaced apart from the surface of the component (3) and ultrasonic waves (7) reflected from the surface of the component (3) are detected,
characterized in that an ultrasonic intensity of the ultrasonic waves (7) reflected at the surface of the component (3) detected by antenna array elements (2n) of an ultrasonic antenna array (2) configured for detecting ultrasonic waves (7) is detected, and a phase shift of the ultrasonic waves irradiated and guided at the surface of the component is determined therefrom with respect to the ultrasonic waves (7) directly reflected at the surface of the component (3).