Connect with us

Ideas for electromechanical resonance?

Discussion in 'Electronic Basics' started by default, Aug 24, 2009.

Scroll to continue with content
  1. default

    default Guest

    I'm wondering if anyone has done this and how:

    I want to resonate a high carbon steel bar at its fundamental
    frequency to produce an audio tone. The bar is 1/8" thick, 6-1/2"
    long and 1-1/2" wide and resonates at about 400 Hz when struck.

    The bars are supported at their "nodes" and do resonate nicely.

    What I'd like is a circuit to get it producing a continuous sine wave.
    So far I haven't had much luck getting enough feedback to produce
    oscillations using a simple circuit similar to a tuning fork
    oscillator. (think Buliva "Acutron" watch circuit but with a high
    current supply and a power transistor)

    I want it to work with a plain steel bar - no magnets attached to the
    bars nothing in contact with the bars and preferably a simple one
    transistor low tech circuit -

  2. default

    default Guest

    Good idea. There might be some homebrew guitar pickups around.
    Surely a steel string would be harder to amplify than a heavy metal

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day