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Proceedings Paper

An ultrasonic phased array system for NDT of steel structures
Author(s): Baohua Shan; Jinping Ou
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Paper Abstract

A phased array ultrasonic inspection system is being developed ot obtain electronically scanned ultrasonic images of the inside of steel structures for nondestructive evaluation. This phased array ultrasonic inspection system is made up of computer, scanner, motion controller, motor driver, ultrasonic emission, receiving & delay circuit, high speed data acquisition circuit and ultrasonic phased array transducer, this system has the functions of controlling ultrasonic transmission and receiving, controlling sound wave steering and focusing, controlling scanner moving, revceiving position information and flaw information, restructuring flaw image. Experimental tests were done on a steel testing block with side-drilled holes to simulate defects. The side-drilled holes could be detected and their diameters could be estimated from B-scan image, and B-scan image could show the location of side drilled holes clearly and does not have any ghost image.

Paper Details

Date Published: 8 June 2005
PDF: 5 pages
Proc. SPIE 5851, Fundamental Problems of Optoelectronics and Microelectronics II, (8 June 2005); doi: 10.1117/12.634064
Show Author Affiliations
Baohua Shan, Harbin Institute of Technology (China)
Jinping Ou, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 5851:
Fundamental Problems of Optoelectronics and Microelectronics II
Yuri N. Kulchin; Oleg B. Vitrik; Vladimir I. Stroganov, Editor(s)

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