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Advances in Transducers, Equipment and Data Processing to Improve the Reliability of NDT, IEE Colloquium on

Date 4 Dec 1990

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Displaying Results 1 - 7 of 7
  • The inspection of ultrasonically noisy steels (using commercially available signal processing routines)

    Publication Year: 1990 , Page(s): 1/1 - 1/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (204 KB)  

    The author describes the study of the propagation of ultrasound through ferritic plate material containing a range of inclusion populations in order to identify those parameters which are significant in understanding the interaction of ultrasound with inclusions and in quantifying inspection performance. In particular he considers the benefits which can be derived from the use of standard commerci... View full abstract»

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  • Model-based ultrasonic inversion for layered structures

    Publication Year: 1990 , Page(s): 4/1 - 4/4
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (208 KB)  

    Ultrasonic problems which cannot easily be solved by the conventional methods of B- and C-scanning often benefit from the use of modelling to assist in understanding the response of the system under test. It is suggested that model-based inversion can be used to improve the resolution of ultrasonic systems, to extract information from overlapping reflections and to provide a means of classifying A... View full abstract»

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  • Artificial intelligence techniques for the automated analysis of ultrasonic NDT data

    Publication Year: 1990 , Page(s): 6/1 - 6/8
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (324 KB)  

    The following methods of NDT data processing techniques are considered: removal of noisy or spurious indications; derivation of missing indications; smoothing; thresholding; edge detection and flood-filling; and contouring. Classification of suspect regions and shape recognition are discussed. The following types of automated recognition techniques are considered: best-fit analysis; and triangulat... View full abstract»

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  • Ultrasonic weld inspection design using simulation

    Publication Year: 1990 , Page(s): 5/1 - 5/3
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (168 KB)  

    Computer modelling is increasingly being used to assist NDT engineers to design ultrasonic inspections of quantified performance and improved reliability. A computer package was developed which allows assessment of system performance in 3D situations. The package allows the inspection to be defined in detail in terms of the characteristics of the probes, the manipulator used to scan them and of th... View full abstract»

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  • Working to manual ultrasonic NDT standards with a computerised ultrasonic test system

    Publication Year: 1990 , Page(s): 3/1 - 3/3
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (140 KB)  

    The author describes the `P-scan' computerised ultrasonic data acquisition and recording system for use in welds inspection. The development of procedures which follow as closely as possible the requirements of BS 3923, the standard for manual ultrasonic testing of welds in ferritic steels is discussed View full abstract»

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  • IEE Colloquium on `Advances in Transducers, Equipment and Data Processing to Improve the Reliability of NDT' (Digest No.172)

    Publication Year: 1990
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (12 KB)  

    The following topics were dealt with: inspection of US noisy steels; intelligent instrumentation for reliable inspection of offshore installations; computerised US test system operating with manual US NDT standards; model-based US inversion for layered structures US weld inspection using simulation; and artificial intelligence techniques for automated analysis of US NDT data View full abstract»

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  • Intelligent instrumentation for reliable inspection of offshore installations

    Publication Year: 1990 , Page(s): 21 - 24
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (204 KB)  

    Extending the operating life of an installation in the North Sea involves continuous inspection, maintenance and repair tasks. Inspection involves the utilisation of a variety of non-destructive testing techniques to monitor the integrity of these structures. The authors discuss the development of multi-frequency US flooded member detection arrays. Intelligent software for signal analysis and deci... View full abstract»

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