Abstract
Sound attenuation is usually considered as a fixed value when DGS evaluation is applied. In reality, the sound attenuation is frequency-dependent. When a pulse travels in a test specimen with sound attenuation the spectrum and the center frequency of the pulse is changed with the traveled sound path. But even the bandwidth-dependent DGS diagram is calculated for a fixed center frequency. A method to derive and to consider the frequency-dependent sound attenuation is introduced to further improve the DGS accuracy.
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Reference
Krautkramer, J., Krautkramer, H.: Ultrasonic Testing of Materials 4th Fully Revised Edition Translation of the 5th Revised German Edition Springer, Berlin GmbH. (1990)
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© 2016 Springer International Publishing Switzerland
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Kleinert, W. (2016). Frequency-Dependent Sound Attenuation. In: Defect Sizing Using Non-destructive Ultrasonic Testing. Springer, Cham. https://doi.org/10.1007/978-3-319-32836-2_11
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DOI: https://doi.org/10.1007/978-3-319-32836-2_11
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Publisher Name: Springer, Cham
Print ISBN: 978-3-319-32834-8
Online ISBN: 978-3-319-32836-2
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