Abstract
Abstract. Despite the precautions taken by mean of calibration procedures, the evaluation of real defects in ultrasonic non destructive testing presents great discrepancies when we change the transducer by an other supposed to be of similar characteristics. These discrepancies are ascribed to the variations in the spectral responses of the transducers utilised. We have achieved a method which permits, by an adapted excitation, to compensate the differences in the transducers responses and we have shown that this permits a 6 dB gain upon the evaluation disparity of real defects.
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Références
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© 1994 Springer Science+Business Media Dordrecht
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De Belleval, J.F., Gherbezza, J.M., Jagnoux, P. (1994). Compensation Of Ultrasonic Transducers Response By Adapting Excitation Signals, Application To Defects Evaluation. In: Maldague, X.P.V. (eds) Advances in Signal Processing for Nondestructive Evaluation of Materials. NATO ASI Series, vol 262. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1056-3_3
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DOI: https://doi.org/10.1007/978-94-011-1056-3_3
Publisher Name: Springer, Dordrecht
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