METHOD automated ultrasonic testing of products from polymeric composite materials body shapes ROTATION

摘要

1. A method for ultrasonic testing of products comprising relative movement of the transmitting and receiving ultrasonic transducers relative to articles passing ultrasonic wave through the article and detection of internal defects in the material of the product by analyzing the distortion of the ultrasonic signal transmitted through a product is simultaneously by the scanning system is moved relative to the ultrasonic transducers, wherein something before the ultrasonic inspection measured minimum size th for the product violations of defects such as discontinuity of the material as follows: - a product in the putative location of the defective area is cut into equal samples, - at the ends of the samples were measured disclosure δ onto the ends of defects increments Δd clearly smaller than the dimensions of the minimum defect - produce layered preparations of samples - after dissection measured area portions defects belonging to relevant disclosure δ, - calculated dependence, where S (δ) - size of the defect area having disclosure (δ), S- total area examined defects - build an experimental dependence of the area of ​​the defect density value disclosure, - on the basis of experimental curves constructed taking into account the confidence interval of the corridor, with a given probability calculated taking into account the measurements determined unequal area or characteristic dimension d and disclosure δminimalnogo defect for the product further determining step scanning ΔYpoverhnosti articles, wherein providing the necessary minimum measurement error d