Ultrasonic flexural torsional guided wave focusing in pipe

Zongqi Sun, Joseph Lawrence Rose

Research output: Contribution to journalConference article

Abstract

Ultrasonic flexural torsional guided wave properties, including the excitation and propagation have been studied recently. Natural focusing is one of the major characteristics exhibited by partial loading excitation. With the aid of phased array transducer we propose a wave focusing method to enhance the signal to noise ratio and defect resolution in pipe inspection. With time delays and amplitudes applied to different elements constructive wave interference at specific point can be achieved in order to focus wave energy. Focusing effect is examined by angular profile, which is the circumferential displacement distribution.

Original languageEnglish (US)
Pages (from-to)53-57
Number of pages5
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume484
DOIs
StatePublished - Nov 17 2004
Event2004 ASME/JSME Pressure Vessels and Piping Conference - San Diego, CA, United States
Duration: Jul 25 2004Jul 29 2004

Fingerprint

Guided electromagnetic wave propagation
Elastic waves
Ultrasonics
Pipe
Wave interference
Transducers
Time delay
Signal to noise ratio
Inspection
Defects

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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abstract = "Ultrasonic flexural torsional guided wave properties, including the excitation and propagation have been studied recently. Natural focusing is one of the major characteristics exhibited by partial loading excitation. With the aid of phased array transducer we propose a wave focusing method to enhance the signal to noise ratio and defect resolution in pipe inspection. With time delays and amplitudes applied to different elements constructive wave interference at specific point can be achieved in order to focus wave energy. Focusing effect is examined by angular profile, which is the circumferential displacement distribution.",
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Ultrasonic flexural torsional guided wave focusing in pipe. / Sun, Zongqi; Rose, Joseph Lawrence.

In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 484, 17.11.2004, p. 53-57.

Research output: Contribution to journalConference article

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AU - Rose, Joseph Lawrence

PY - 2004/11/17

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AB - Ultrasonic flexural torsional guided wave properties, including the excitation and propagation have been studied recently. Natural focusing is one of the major characteristics exhibited by partial loading excitation. With the aid of phased array transducer we propose a wave focusing method to enhance the signal to noise ratio and defect resolution in pipe inspection. With time delays and amplitudes applied to different elements constructive wave interference at specific point can be achieved in order to focus wave energy. Focusing effect is examined by angular profile, which is the circumferential displacement distribution.

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