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An air-coupled ultrasonic matching layer employing half wavelength cavity resonance

Kelly, S. and Hayward, G. and Gomez, T.E. (2001) An air-coupled ultrasonic matching layer employing half wavelength cavity resonance. In: IEEE International Ultrasonic Symposium, 2001-10-07 - 2001-10-10, Atlanta.

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Abstract

The concept of a multi-phase, integrated layer for improved mechanical matching between a piezoelectric transducer and an air load is explored, both theoretically and experimentally. A combination of optical and scanning electron microscopy is used to identify the internal structure of a layer comprising silicone rubber and a semiporous membrane filter. This data is then inserted in a linear model for prediction of through transmission response and the simulations compared with experimental measurements for extrapolation of the necessary materials elastic constants. Using these properties, it is possible to design a matching layer for a given application and results are presented that confirm the success of the approach.

Item type: Conference or Workshop Item (Paper)
ID code: 37556
Keywords: air-coupled, ultrasonic matching, wavelength cavity, half, resonance, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 09 Feb 2012 16:39
    Last modified: 06 Sep 2014 16:15
    URI: http://strathprints.strath.ac.uk/id/eprint/37556

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