Method and device for determining defects on a constructional element of a turbine

摘要

The invention relates to a method which is used to detect defects on a component of a turbine. Said method comprises the following steps; at least one ultrasonic signal is emitted and captured by means of a group beam examination head on a flat region of the component which is to be examined. The invention is characterized according to the following steps: the group of the beam examination heads are distributed into several virtual examination heads and at least one ultrasonic signal is emitted and captured by at least two of the virtual examination heads which is directed to an individual flat region which is to be examined.