Improve design of hand grip exerciser

Discussion in 'The Projects Forum' started by Amy Yu, Oct 14, 2015.

  1. Amy Yu

    Thread Starter New Member

    Oct 14, 2015
    5
    0
    My project's is about adding counters and force sensing elements(for individual fingers) into the independent finger hand grip exerciser for LCD display. I have read up some articles relating force sensor with microcontroller, but still kinda lost as I am completely new in these. Sincerely hope someone can give me some useful guidelines. Thanks a lot!
    [​IMG]
     
  2. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,130
    266
    Measuring force is actually a bitch.

    You would probably do better measuring the mechanical displacement of the spring.
    One idea is to attach a thin strip of material to each finger pad, the strip could have an array of slots that could be read
    with an optical quadrature encoder sensor, then all you need to do is count pulses - all digital and easy.
     
  3. Amy Yu

    Thread Starter New Member

    Oct 14, 2015
    5
    0
    I can't really get what you mean. Is the optical quadrature encoder sensor used for measuring the mechanical displacement of the spring?
     
  4. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,770
    970
  5. Sensacell

    Well-Known Member

    Jun 19, 2012
    1,130
    266
    Yeah, measure the spring movement with the encoder.
     
Loading...