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IEE Proceedings A - Physical Science, Measurement and Instrumentation, Management and Education - Reviews

Issue 3 • Date March 1987

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Displaying Results 1 - 10 of 10
  • NDT: an integral part of engineering

    Publication Year: 1987, Page(s):237 - 238
    IEEE is not the copyright holder of this material | PDF file iconPDF (315 KB)
    Freely Available from IEEE
  • Computers in ultrasonic NDT

    Publication Year: 1987, Page(s):239 - 248
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2264 KB)

    The paper reviews the various aspects of the development of ultrasonic NDT techniques made possible by the use of computers. Computerised control of scanning rigs, data collection, analysis and display are described. The advantages of whole waveform collection and analysis are discussed, as are some of the associated problems and their solutions. It is concluded that the use of computers has added... View full abstract»

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  • Efficient data acquisition in automated ultrasonic inspection

    Publication Year: 1987, Page(s):249 - 256
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (984 KB)

    The large volumes of data resulting from automated ultrasonic inspections illustrate the difficulties of efficient data acquisition and analysis. Consequently, all the available inspection systems impose a compromise between the quantity and the quality of data that they collect and the maximum possible speed of inspection. The paper introduces the problems of ultrasonic data acquisition and asses... View full abstract»

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  • Investigation of the 1-D inverse born technique

    Publication Year: 1987, Page(s):257 - 265
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1029 KB)

    An ultrasonic digital signal processing technique which can be used to size isolated inhomogeneities in an otherwise homogeneous medium is examined. The technique is known as Born inversion and is theoretically valid for application to weak scatterers. However, accurate radius predictions have also been obtained experimentally for strong scatterers (voids). The technique was examined using synthet... View full abstract»

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  • Computer-controlled manipulator system for autonomous inspection

    Publication Year: 1987, Page(s):266 - 278
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2063 KB)

    The paper describes research carried out in the Mechanical Engineering Department at University College London with the aim of investigating the feasibility of introducing automation into remote structural inspection. The work concentrates on the problems associated with building up a mathematical model of structures made from cylindrical components by gathering tactile information using a compute... View full abstract»

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  • Electromagnetic ultrasonic transducers and systems for in-service inspection of gas pipelines

    Publication Year: 1987, Page(s):279 - 282
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (498 KB)

    Electromagnetic ultrasonic transducers (EMUS) do not need liquid couplants; they can be designed to operate at elevated temperatures; they can be scanned at high speeds; and they can be designed and fabricated for a much wider variety of wave modes than piezoelectric probes, especially for modes with tangential polarisation. A disadvantage is the larger insertion loss than that of piezoelectric tr... View full abstract»

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  • NDT applications of scanning acoustic microscopy

    Publication Year: 1987, Page(s):283 - 289
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1498 KB)

    The scanning acoustic microscope is becoming an important new tool for nondestructive testing. The paper concentrates on the current application of the technique and recent developments in instrumentation relevant to the NDT field: an area not well covered in the literature View full abstract»

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  • Consequences of resonant surface-wave excitation on contrast in reflection scanning acoustic microscope

    Publication Year: 1987, Page(s):290 - 300
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1314 KB)

    The scanning acoustic microscope (SAM) is a confocal imaging system that is very similar in structure to the scanning optical microscope. The purpose of the paper is to show that when surface-wave excitation is the predominant contrast mechanism, the imaging performance cannot be described within the same framework that is used to explain image formation in the scanning optical microscope. The pap... View full abstract»

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  • Three-dimensional finite-element modelling in eddy-current nondestructive testing

    Publication Year: 1987, Page(s):301 - 306
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (450 KB)

    Eddy-current nondestructive testing is increasingly used in industry as a means of noninvasive detection of flaws in metals that are electrically conducting. Various computer modelling techniques have been used in the past for simulating different NDT processes. This contribution is concerned with the prediction of electromagnetic fields in the vicinity of a surface flaw using a general three-dime... View full abstract»

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  • Book review: Review of Progress in Quantitative Nondestructive Evaluation, Volumes 5A and 5B

    Publication Year: 1987, Page(s):307 - 308
    IEEE is not the copyright holder of this material | PDF file iconPDF (295 KB)
    Freely Available from IEEE