NDT.net - May 2002, Vol. 7 No.05

Piezocomposite technology:
An innovative approach to the improvement of N.D.T. performance using ultrasounds
|Frenche|

Jérôme Poguet, Imasonic S.A.
Gérard Fleury, Imasonic S.A.
Jean Luc Guey, Imasonic S.A.
Philippe Conche, Imasonic S.A.
Corresponding Author Contact:
Email: jerome.poguet@imasonic.com, Web: www.imaconic.com

Abstract

Introduction

Piezocomposite materials

Immersion probes

Fig 5: Comparison between
  • A piezo-ceramic sensor with focusing lens: noise to signal ratio 20 dB – lateral resolution 6.5 mm
  • A piezocomposite sensor with aspherical focusing: noise to signal ratio 38 dB – lateral resolution 4.5 mm
  • High temperature probes

    Multi-element or phased array probes

    Examples of applications

    Conclusion

    References

    1. G.Fleury, C.Gondard, " Improvements of Ultrasonic Inspections through the use of Piezo Composite Transducers", Proc. Of 6th European Conference on non destructive testing (1994)
    2. J.Poguet, L.Chupin, Ph.Gendreu, O.Roy, S.Mahaut " Contrôle ultrasonore au moyen de traducteurs multi-éléments : design et applications", dans ce volume
    3. P.Ciorau, J.Poguet, G.Fleury, ŤSpecial linear phased array probes used for ultrasonic examination of complex turbine componentsť, Proc. Of 15th WCNDT (2000)
    4. J.Poguet, G.Fleury, O.Burat, G.Moreau "Circular phased array probes for inspection of Superphoenix steam generator tubes" Proc. Of EPRI Phased Array inspection seminar (1998)
    5. M.Fink, N.Chakroun, F.Wu, L.Beffy, G.Mangenet, ŤApplication of ultrasonic time reversal mirrors to non destructive testingť Procs Of 6th European Conference on NDT (1994)

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