Development on the laser-based weld flaw identification system

Zhigang Qu; Abdeldjalil Bennecer; Cem Selcuk; Tat-Hean Gan

Development on the laser-based weld flaw identification system

Zhigang Qu, Abdeldjalil Bennecer, Cem Selcuk, Tat-Hean Gan

Engineering

Research output: Contribution to Book/Report › Conference Contribution › peer-review

Abstract

In this paper, a laser-based flaw identification system is presented for non-destructive inspection of welds. The laser sensor design is based on the laser triangulation principle and the output is a two-dimensional profile of a target sample, which contains basic dimensional information: height and width of the weld. This two-dimensional profile is then processed by a specially devised algorithm based on the local maxima of the sym8 wavelet coefficients accumulation. The positions of artificially created features (notches representative of weld flaws such as surface breaking cracks) on the sample are thereby calculated. It is shown that the laser-based weld flaw identification system is able to reliably and accurately identify and locate surface features ⅓ mm wide.

Original language	English
Title of host publication	51st Annual Conference of BINDT
Place of Publication	Daventry, UK
Publisher	Curran Associates, Inc.
Pages	21-29
Number of pages	10
ISBN (Print)	9781622764372
Publication status	Published - 2012
Event	Meeting held 11-13 September 2012 - Daventry, United Kingdom Duration: 11 Sept 2012 → 13 Sept 2012

Publication series

Name	51st Annual Conference of BINDT

Conference

Conference	Meeting held 11-13 September 2012
Country/Territory	United Kingdom
City	Daventry
Period	11/09/12 → 13/09/12

Keywords

Non-Destructive Testing
Laser

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Cite this

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title = "Development on the laser-based weld flaw identification system",

abstract = "In this paper, a laser-based flaw identification system is presented for non-destructive inspection of welds. The laser sensor design is based on the laser triangulation principle and the output is a two-dimensional profile of a target sample, which contains basic dimensional information: height and width of the weld. This two-dimensional profile is then processed by a specially devised algorithm based on the local maxima of the sym8 wavelet coefficients accumulation. The positions of artificially created features (notches representative of weld flaws such as surface breaking cracks) on the sample are thereby calculated. It is shown that the laser-based weld flaw identification system is able to reliably and accurately identify and locate surface features ⅓ mm wide.",

keywords = "Non-Destructive Testing, Laser",

author = "Zhigang Qu and Abdeldjalil Bennecer and Cem Selcuk and Tat-Hean Gan",

year = "2012",

language = "English",

isbn = "9781622764372",

series = "51st Annual Conference of BINDT",

publisher = "Curran Associates, Inc.",

pages = "21--29",

booktitle = "51st Annual Conference of BINDT",

note = "Meeting held 11-13 September 2012 ; Conference date: 11-09-2012 Through 13-09-2012",

}

TY - GEN

T1 - Development on the laser-based weld flaw identification system

AU - Qu, Zhigang

AU - Bennecer, Abdeldjalil

AU - Selcuk, Cem

AU - Gan, Tat-Hean

PY - 2012

Y1 - 2012

N2 - In this paper, a laser-based flaw identification system is presented for non-destructive inspection of welds. The laser sensor design is based on the laser triangulation principle and the output is a two-dimensional profile of a target sample, which contains basic dimensional information: height and width of the weld. This two-dimensional profile is then processed by a specially devised algorithm based on the local maxima of the sym8 wavelet coefficients accumulation. The positions of artificially created features (notches representative of weld flaws such as surface breaking cracks) on the sample are thereby calculated. It is shown that the laser-based weld flaw identification system is able to reliably and accurately identify and locate surface features ⅓ mm wide.

AB - In this paper, a laser-based flaw identification system is presented for non-destructive inspection of welds. The laser sensor design is based on the laser triangulation principle and the output is a two-dimensional profile of a target sample, which contains basic dimensional information: height and width of the weld. This two-dimensional profile is then processed by a specially devised algorithm based on the local maxima of the sym8 wavelet coefficients accumulation. The positions of artificially created features (notches representative of weld flaws such as surface breaking cracks) on the sample are thereby calculated. It is shown that the laser-based weld flaw identification system is able to reliably and accurately identify and locate surface features ⅓ mm wide.

KW - Non-Destructive Testing

KW - Laser

UR - http://www.mendeley.com/research/development-laserbased-weld-flaw-identification-system

M3 - Conference Contribution

SN - 9781622764372

T3 - 51st Annual Conference of BINDT

SP - 21

EP - 29

BT - 51st Annual Conference of BINDT

PB - Curran Associates, Inc.

CY - Daventry, UK

T2 - Meeting held 11-13 September 2012

Y2 - 11 September 2012 through 13 September 2012

ER -

Development on the laser-based weld flaw identification system

Abstract

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Keywords

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