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Looking for ideas for electronic dog whistle

Discussion in 'General Electronics Discussion' started by dxpwny, Aug 10, 2011.

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  1. dxpwny

    dxpwny

    30
    0
    Jul 9, 2011
    I want to build an electronic dog whistle that I can fire off for a second or two after the neighbors dog begins it's nightly barking spree.

    I know it would have to be around 25KHZ ... but am not sure what to try .... piezos ?

    Any ideas ?
     
  2. daddles

    daddles

    443
    3
    Jun 10, 2011
    I'd imagine in the 20-40 kHz range would be appropriate, but you can probably find out more information by doing a web search.

    One of your first tasks is to decide how you'll decide whether the whistle is working appropriately. You'll want some kind of detector to show that it is oscillating properly. The tool that most folks would probably pick would be a microphone with suitable frequency response -- then look at its output on an oscilloscope or an AC voltmeter.
     
  3. Laplace

    Laplace

    1,252
    184
    Apr 4, 2010
    For the transducer why not try an audio tweeter?
     

    Attached Files:

  4. daddles

    daddles

    443
    3
    Jun 10, 2011
    Excellent suggestion!
     
  5. dxpwny

    dxpwny

    30
    0
    Jul 9, 2011
    Apparently no longer sold



    Apparently no longer sold

    Thanks though
     
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