title: Location of multiple proximate flaws using perpendicular NDT ultrasonic arrays.
abstract: An improved method for ultrasonic location of multiple flaws using perpendicular ultrasonic arrays, working in near-field conditions, is presented. The method uses the pulse-echo technique and is based on the processing of the information acquired by both the elemental emitting transducers and their adjacent ones. This type of processing improves the performance of a previous method that sometimes presents limitations for the detection of multiples flaws. This new method is applied to a set of ultrasonic traces, obtained with an ultrasonic prototype specifically designed for testing this method, showing the improvement obtained in imaging results.
authors.affiliation: ETSI Telecomunicación, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022 Valencia, Spain. marodrig@upvnet.upv.es
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Rodríguez
authors.forename: Antonio
authors.initials: A
authors.lastname: Ramos
authors.forename: J L
authors.initials: JL
authors.lastname: San Emeterio