Rapid inspection using integrated ultrasonic arrays

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Welds in high-quality products are subjected to extensive ultrasonic inspection during manufacture and in-service. The time and efficiency of the scan is important for both financial and quality assurance considerations. This has led to a BRITE-EuRAM programme, to develop methods for performing rapid quality weld inspection with a target reduction of 75% in inspection time. To achieve this, a large (128 mm) cost-effective self-contained ultrasonic array system was developed which allows rapid inspection, when compared to a single-probe system, and real-time images to aid in the detection and identification of flaws The scanning and control electronics were integrated with a piezo-polymer array for wide bandwidth and to optimise signal-to-noise ratio, cost and flexibility. The self-contained head allows it to be used with a wide range of conventional equipment, for increased speed of coverage, as well as for imaging. Examples of A-scans and images obtained using the array on practical samples are presented. The standard design has an operational acoustic frequency band of 2 to 5 MHz which covers the frequencies required for weld inspection but this can be raised (for improved resolution or for thickness gauging) or lowered (for attenuating materials) as required.

LanguageEnglish
Pages573-577
Number of pages5
JournalInsight: Non-Destructive Testing and Condition Monitoring
Volume40
Issue number8
Publication statusPublished - 1 Dec 1998

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Inspection
Ultrasonics
Welds
Gaging
Quality assurance
Frequency bands
Costs
Signal to noise ratio
Polymers
Electronic equipment
Acoustics
Scanning
Bandwidth
Imaging techniques
Defects

Keywords

  • cost effectiveness
  • inspection
  • nondestructive examination

Cite this

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Rapid inspection using integrated ultrasonic arrays. / Lines, D.

In: Insight: Non-Destructive Testing and Condition Monitoring, Vol. 40, No. 8, 01.12.1998, p. 573-577.

Research output: Contribution to journalArticle

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