Design of a low profile array transducer in d15 mode for high angled shear wave generation

Qiu, Zhen and O'Leary, Richard and Gachagan, Anthony and Dobson, Jeff (2016) Design of a low profile array transducer in d15 mode for high angled shear wave generation. In: Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, FRA.

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    Abstract

    Shear wave inspection is generated from mode conversion of longitudinal waves, using a selected, angled wedge positioned between the transducer and the test specimen. However, in certain scenarios where access is restricted the combination of the transducer and the wedge can be too cumbersome for in situ deployment. In this work, a low profile, linear ultrasound array transducer is proposed to generate shear waves via direct coupling to the component surface precluding the requirement for a wedge. The array transducer was designed using finite element modelling, and a prototyped array was manufactured with 32 elements and operating frequency at ~2MHz. Preliminary imaging results has shown the shear wave beam generated can be operated at high angles up to 80 degrees.

    Author(s):Qiu, Zhen ORCID logoORCID: https://orcid.org/0000-0002-6219-7158, O'Leary, Richard ORCID logoORCID: https://orcid.org/0000-0002-4092-2101, Gachagan, Anthony ORCID logoORCID: https://orcid.org/0000-0002-9728-4120 and Dobson, Jeff ORCID logoORCID: https://orcid.org/0000-0002-9757-9578
    Item type:Book Section
    ID code:58101
    Notes:© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Keywords:shear wave, direct coupling, linear array, low profile, high angle, NDT/E, mode conversion, longitudinal waves, angled wedge, finite element modelling, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Technology and Innovation Centre > Sensors and Asset Management
    Depositing user: Pure Administrator
    Date deposited:10 Oct 2016 08:52
    Last modified:15 Jan 2020 04:46
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/58101
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