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Inspection of pipeline girth welds with ultrasonic phased array technique

高技术通讯（英文版）2005，Vol.11Issue(3)：240-244,5.

Inspection of pipeline girth welds with ultrasonic phased array technique

作者信息

1. Institute of Automatic Detection, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Institute of Automatic Detection, Shanghai Jiaotong University, Shanghai 200030, P.R.China;Institute of Automatic Detection, Shanghai Jiaotong University, Shanghai 200030, P.R.China
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摘要

Abstract

A novel automatic ultrasonic system used for the inspection of pipeline girth welds is developed, in which a linear phased array transducer using electronic scan is adopted. Optimal array parameters are determined based on a mathematical model of acoustic field for linear phased array derived from Huygens' principle. The testing method and the system structure are introduced. The experimental results show that the phased array transducer system has the same detectability as that of conventional ultrasonic transducer system, but the system architecture can be simplified greatly, and the testing flexibility and the testing speed can be improved greatly.

关键词

linear phased array transducer/mathematical model of acoustic field/pipeline girth welds/defect inspection

Key words

linear phased array transducer/mathematical model of acoustic field/pipeline girth welds/defect inspection

分类

信息技术与安全科学

引用本文复制引用

..Inspection of pipeline girth welds with ultrasonic phased array technique[J].高技术通讯（英文版）,2005,11(3):240-244,5.

基金项目

Supported by the High Technology Research and Development Programme of China (No. 2001AA616170). （No. 2001AA616170）

高技术通讯（英文版）

OAEI

ISSN：1006-6748

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