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Piezoelectric transducers

Discussion in 'Electronic Basics' started by [email protected], Jul 25, 2007.

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  1. Guest

    Hi,

    I am a student of ME. I am doing my final year project on
    piezoelectric in shoes. Piezoelectric is located in shoes, while
    walking, piezoelectric compressed and it generates an electric signal.
    this electric signal is stored in capacitor in other words, this
    electric signal charges a capacitor.

    I need a piezoelectri for this application. which type of electric
    suits? which specifications i need to buy it? do you have any idea ,
    from where i can buy it online?

    Thanks.

    Regards,
    Arjav Bavarva.
     
  2. Even though the ceramic piezo materials have better power
    generating properties, I think this application is probably
    better suited to the flexible piezo films, just for physical
    ruggedness.

    You can find lots of information by Googling [piezo film].

    But if you need the conversion efficiency of the ceramic
    material, I suspect you will need lots of small pieces
    embedded in an elastomeric material to prevent breakage,
    with each piece coupled to the storage capacitor through a
    bridge rectifier.
     
  3. Bob Masta

    Bob Masta Guest

    Although this may be an excellent project, I suspect
    it will not be a good product. This is not harvesting
    otherwise-wasted energy, it's extracting energy from your
    stride. If you take very much, it will feel like you are
    walking in sand... very tiring! On the other hand, that
    *might* make a good product after all: Market it as
    a special exercise shoe... <g>

    Best regards,



    Bob Masta

    D A Q A R T A
    Data AcQuisition And Real-Time Analysis
    www.daqarta.com
    Scope, Spectrum, Spectrogram, Signal Generator
    Science with your sound card!
     
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