Analysis of influence of inconsistent performances of array elements on flexural ultrasonic phased array for measurement of ultrasound in fluids

Lei Kang, Andrew Feeney, Steve Dixon

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Two-dimensional flexural ultrasonic phased arrays have been designed and fabricated for a gas flow meter to compensate for the sound beam drift effect. Inconsistent performances are found in the array elements, which can decrease the measurement accuracy when working as a phased array. The causes and the influence of the inconsistent performances are investigated. Methods for improving the consistency of performances are discussed. Deconvolution method is found effective for suppressing the influence of inconsistent performances. Combining deconvolution with matched filter improves the accuracy of measurement of time of arrival of ultrasonic signal, ensuring an enhancement of accuracy of the flow measurement based on flexural ultrasonic phased arrays.

    Original languageEnglish
    Title of host publication2018 IEEE International Ultrasonics Symposium, IUS 2018
    PublisherIEEE Computer Society
    Number of pages4
    ISBN (Electronic)9781538634257
    ISBN (Print)9781538634264
    DOIs
    Publication statusPublished - 17 Dec 2018
    Event2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan
    Duration: 22 Oct 201825 Oct 2018

    Publication series

    NameIEEE International Ultrasonics Symposium, IUS
    ISSN (Print)1948-5719
    ISSN (Electronic)1948-5727

    Conference

    Conference2018 IEEE International Ultrasonics Symposium, IUS 2018
    Country/TerritoryJapan
    CityKobe
    Period22/10/1825/10/18

    Keywords

    • deconvolution
    • flexural ultrasonic transducer
    • flow measurement
    • phased array
    • transit-time flow meter

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