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Summary: contact force sensors

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  • Summary: contact force sensors


    Since there was some interest in the manufacturers of the contact force sensors
    here are the replies. Thanks to all who e-mailed:

    Have you heard of FSCAN (or F-scan, I don't know which)? It is an
    array of pressure sensitive layered between sheets of mylar. The device
    has been marketed as an in-the shoe device for recording contact forces of
    the foot at different sites along its surface. Perhaps something similar
    might be modified for your use.

    Good Luck,
    John L.

    Dr. John H. Lawrence III
    Center for Biomedical Engineering
    University of Kentucky
    Lexington, KY 40506-0070

    ************************************************** *****************************
    I have also been interested in measuring local forces due to impact - I have
    followed up with the technology applied to shoes, namely, piezofilm. It
    seems that KYNAR PIEZOFILM company was sold to ATOCHEM (as appeared in the
    Manouel et al. Technical Note - J. Biomechanics 25(6):627-635, 1992). It
    seems that this company has been sold off to AMP Sensor Products. They still
    produce the piezofilm used in the footwear studies. I have requested that
    they send me an information package - you can contact them directly at (610)
    666 3500.

    I look forward to your posting of the replies.

    Terry Smith
    USC Biomechanics Laboratory
    USC Head Protection Research Laboratory
    Los Angeles, CA

    ************************************************** *****************************
    I don't know if it would fit your application, but I'm aware of a company
    that makes sensor 'sheets' that are probably in the 2'x2' or 3'x3' range,
    which are used to evaluate the fit of saddles on horses' backs. If this
    sounds like something workable, I'll look them up for you. Just email me at
    the address below.

    Nancy R. Deuel, PhD
    * University of Maryland Equine Sports Biomechanics Laboratory *
    * 1113 Animal Sciences Center Animal Sciences Department *
    * University of Maryland Phone: 301/405-1385 *
    * College Park, Maryland 20742 USA Fax: 301/314-9059 *

    We are working with sensors based on pressure conductive rubber. We measure
    muscle tonus trying to follow muscle fatigue during exercises. I will send
    you our articles, which present our goals and experiments. Unfortunately it
    is my last hour in office before leaving for hollidays. However I will try
    to send you our papers ASAP.
    The other contact is my friend from Prague. He has done a lot experiments in
    this field. His address:
    Doc. Jaromir VOLF
    CVUT Prague

    Dusan Simsik, Ph.D.
    Technical University
    Letna 9
    04187 Kosice

    ************************************************** *****************************
    In order to evaluate the pressure exerted by the braces on the skin
    in the therapy of scoliosis we used pressure traducers type 105 S
    produced by Miniature Pressure Trasducers.
    In this moment I have not the adress of the Company in USA, I bought
    the trasducers fron an italian commercial company, if you need it I
    will try to find.
    Livio Quagliarella

    ************************************************** ***************************

    Try TechScan Technologies - MA - I think they are in Boston.

    Good luck

    SIncerely yours,
    W.R. Walsh, Ph.D.
    Graduate School for Biomedical Engineering
    University of New South Wales
    612 385 3923 - phone
    612 663 2108 fax

    ************************************************** **************************

    I just purchased a system from Tekscan (the people who created the dental
    pressure measuring devices). I am very happy with the product especially
    the software. Call the company at 1-800-248-3669. Bear in mind that they
    have a variety of mat types for various applications. I have the seating
    mats but they offer mats for foot pressures too (the mats are configurable
    to any size/pressure ranges. Tell them what you need and they will try
    really hard to accomodate your needs.)

    I also have a pressure mapping system from Novel. A nice system (from
    germany) but the software stinks and it's a bit expensive. They also don't
    have the resolution (# sensors/in2) of the Tekscan system Call Susan
    Diekrager at (612) 332-8605 (you can tell her that I 'sent' you) for info
    and pricing.

    hope this helps.

    Perry Genova, Ph.D.
    NC Ergonomics Resource Center

    PS. AMTI (the force plate people) sell their badge engineered version of
    the Tekscan system

    ************************************************** *************

    Patrick Sparto
    Biodynamics Laboratory
    Room 140 - Baker Systems
    1971 Neil Avenue
    The Ohio State University
    Columbus, OH 43210

    Tel: 614-292-2016
    FAX: 614-292-7852