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A theoretical investigation of ultrasonic transducer design for measurement of skin

Estanbouli, Y. and Hayward, G. and Barbenel, J.C. (2002) A theoretical investigation of ultrasonic transducer design for measurement of skin. 2002 IEEE Ultrasonics Symposium, 2 . IEEE, Munich, pp. 1277-1280. ISBN 0-7803-7582-3

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Abstract

Despite significant advances in ultrasonic instrumentation, accurate and repeatable measurements of skin structure and dimensions remain problematic. Skin structure is complicated and structural boundaries are non-planar and may be diffuse, inhibiting the application of inversion methods for skin thickness measurement. Coupling a transducer to the skin surface with water or aqueous gel can produce significant artefacts in thickness measurement, which may be prevented by using a rubber dry contact. This work describes a theoretical investigation of these problems, using the PZFlex finite element code as a virtual prototyping tool. Simulations show that non-planar and diffuse boundaries have significant effect on the output backscattered signals; and using of low loss rubber dry contact is possible but further work is required to determine the properties and optimum shape of the rubber interface.

Item type: Book
ID code: 8342
Keywords: biomedical transducers, biomedical ultrasonics, finite element analysis, skin, ultrasonic transducers, Bioengineering
Subjects: Technology > Engineering (General). Civil engineering (General) > Bioengineering
Department: Unknown Department
Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 31 Aug 2009 16:40
    Last modified: 12 Mar 2012 10:49
    URI: http://strathprints.strath.ac.uk/id/eprint/8342

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