METHOD AND DEVICE FOR DETERMINING AN ORIENTATION OF A DEFECT PRESENT WITHIN A MECHANICAL COMPONENT

摘要

The invention relates to a method and device for determining an orientation of a defect present within a mechanical component (B) using at least one ultrasonic head (2) that applies ultrasonic signals to the mechanical component (B) starting from various measurement points (MP), wherein echo ultrasonic signals reflected by a point (P) to be analyzed present within the component (B) back to the measurement points (MP) are received by the same or a different ultrasonic head (2); and having a data processing unit (4) analyzing the received echo ultrasonic signals as a function of a sound emission direction between each measurement point (MP) and the point (P) to be analyzed for determining the orientation of the defect, wherein a distance (d) between the measurement point (MP) and the point (P) to be analyzed is calculated for every measurement point (MP) as a function of a signal propagation time between the point in time of emitting the ultrasonic signal and the point in time of receiving the echo ultrasonic signal reflected by a defect, and the echo ultrasonic signals of the point (P) to be analyzed received at the various measurement points (MP) at offset times are added together in phase for the analysis thereof.