Ultrasonic measuring method and apparatus, in particular for curing monitoring and laminate thickness determination in fiber composite part production

摘要

Ultrasonic measuring method, - wherein an ultrasonic signal (14) via a coupling surface (8) is coupled into a measuring object (9), - wherein the ultrasonic signal (14) is registered at a decoupling surface (10), - wherein a transit time of the ultrasonic signal (14) the measured object (9) is measured between the coupling surface (8) and the decoupling surface (10) and - wherein the ultrasound signal (14) at an angle (α) to the surface normal (16) by a leading body (7) resting against the coupling surface (8) ) of the coupling surface (8) is coupled into the measuring object (9), characterized in that - an angle of incidence (β) of the ultrasonic signal (14) on the coupling surface (10) is measured, wherein the angle of incidence (β) with a gated array ( 12) of ultrasonic receiver units (13) at the decoupling surface (10) is measured, and - from the running time, the angle (α), the angle of incidence (β) and the speed of sound (c1) in the flow body (7) the sound velocity (c2) in the measurement object (9) and the thickness (d) of the measurement object (9) are determined.