R-angle is a typical structure with curved surface and variable thickness.It is difficult to display the contour and defects of R-angle structure using traditional ultrasonic testing.To solve the problem,full matrix fo-cusing imaging method is proposed with twin probes.The contour of R-angle structure is presented completely with the proposed method.The efficiency of full matrix focusing imaging is low with twin probes,so it is diffi-cult to realize efficient real-time imaging.In order to increase the imaging efficiency,the trapezoidal matrix focus imaging algorithm is proposed for real-time imaging.Focusing imaging experiments are carried out to verify the effectiveness of the proposed trapezoidal matrix focus imaging algorithm with twin probes.R-angle structure with variable thickness is used as the experimental specimen.Experimental results show that internal contour and defects of R-angle structure are displayed completely and clearly with the proposed method,compared with the traditional full matrix focusing imaging method with single probe.
NETL
NSTL
万方数据
维普
