Nondestructive ultrasound - test method for the defect detection, as well as a device for carrying out the same

摘要

The invention relates to a non-destructive ultrasound test method, implemented in a test device, for detection of damage in a test region of a structure piece, by means of detecting reflections from inhomogeneities in the test region. At least one ultrasound emitter for injection of ultrasound stimuli into the structure piece and at least two ultrasound receivers for receiving structural responses to the stimuli are installed on the structure. A number of test points in the test region are fixed and memorised and in the test device expected ranges for signal forms for each test point and each location of the ultrasound receiver are implemented, which are reflected from an inhomogeneity should the same be present at the relevant test point and measured by the relevant ultrasound receiver, if a real homogeneity is actually present at the relevant test point.