2D arrays and Volume Focusing Combined Inspection Technique.

摘要

2D arrays, also called matrix arrays, have recently appeared on the market providing key advantages to improve inspection methods and results. In particular, point focus ability, tilt andskew angle scanning are both promising features that new electronic equipment makers are promoting. Volume Focusing, when used with 2D arrays, yields high inspection speeds,interaction of UT waves and flaws, and the ability to image an entire volume of material without moving the probe. This paper presents such a situation, with results based on using a few 2D Phased arrays, as well as different test pieces to prove the feasibility. Detection as well as resolution abilities, in addition to speed issues are discussed to present not only qualitative, butquantitative data.