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To:JR Crandall / Tri-axial trans.

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  • To:JR Crandall / Tri-axial trans.

    Dear Mr Crandall

    Due to some system failure I have lost your Email on 24th June

    Regarding Tri-axial transducer I would appreciate if you would

    send it to me again. I send my original question in case!




    I really need some detailed answers to my questions. Also any
    questions or suggestions regarding this research are welcome .

    I am currently working on design and development a tri-axial
    transducer (13mm^2 & 3mm thickness) using piezo-electric film.

    I think this transducer has many applications, one of which I am
    aiming for to measure the step by step in-shoe tri-axial pressure (a
    vertical and two shears) instantly. The system will be flexible so that
    more then one transducer can be used at the same time under each foot.

    I have few questions that I am looking for answers, I will be happy
    and grateful if somebody up there that cad help me answering some
    of my questions:

    1. Are under foot in-shoe Tri-axial measurements (Vertical-Shear)
    medically significant? Why? (please explain)

    2. What the measurements results expected to show the professional ?

    3. I have problems calibrating the shear components of
    the transducer with at least 98% accuracy and measuring the
    cross-talks. Do you know of any system that can help ?

    4. Are there any other applications that a Tri-axial transducer can
    be used for (medical or non-medical) ?

    Your help will be appreciated.

    Thank you

    M Razian

    University of Kent
    Medical Engineering Lab.