Nonlinear ultrasonics is a powerful method for detecting microscopic damage and stress in materials. The method is based on introducing a perturbation signal at high frequency, and monitoring higher order harmonics for microscopic damage or quantifying the frequency shift for measuring stress. As the influence of microscopic damage and stress to the ultrasonic signal is weak, a highly precise measurement is needed. In this paper, errors in the measurement equipment, measurement methodology, and couplant type are experimentally quantified. Random errors and unknown systematic errors inherent to the method and its tools are defined. The measurement uncertainty in nonlinear ultrasonics is quantified. Based on the limitation of the measurement accuracy, minimum detectable stress level is defined.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The Quantification of Errors in the Measurement of Nonlinear Ultrasonics


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2015 World Congress & Exhibition ; 2015



    Publication date :

    2015-04-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    The Quantification of Errors in the Measurement of Nonlinear Ultrasonics

    Abbasi, Zeynab / Cunningham, Mary / Ozevin, Didem | British Library Conference Proceedings | 2015


    Laser ultrasonics - industrial applications for materials measurement

    Baker, G. / Thayer, P. / Moss, B. et al. | British Library Conference Proceedings | 2003


    Identification of Material Damage Precursors using Nonlinear Ultrasonics

    Bunget, Gheorghe / Ghoshal, Anindya / Pepi, Marc et al. | AIAA | 2015


    Transport Aircraft Human Errors Quantification

    Berlowitz, Ilan | British Library Conference Proceedings | 2019


    In praise of ultrasonics

    Emerald Group Publishing | 1963