Enhanced Ultrasonic Defect Sizing Techniques using Weiner Filtering and Autoregressive Spectral Extrapolation

摘要

Ultrasonic scanning provides a quick and economical way to survey specific portions of pipeline infrastructure, in particular welds. Ultrasonic testing primarily focuses on pipeline anomalies related to material, construction and fabrication errors. These defects are created during material processing, especially welding, during pipeline construction [1]. This paper describes a method of accurately sizing weld defects using a digital signal processing technique.