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proximity switch?

Discussion in 'General Electronics Discussion' started by LukeSkyrunner, Sep 23, 2016.

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  1. LukeSkyrunner

    LukeSkyrunner

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    Sep 23, 2016
    I'm trying to set it up so that something will vibrate when something else comes in close proximity to it. Ideally the proximity could be adjusted. I'm looking for something on the smaller side. - Thank you for any help!!
     
  2. Tha fios agaibh

    Tha fios agaibh

    2,088
    699
    Aug 11, 2014
    More information would be helpful.
    It depends what you want to detect. What material, what range (distance) and so forth.
    Do you want to buy a prox switch or make one?
     
  3. LukeSkyrunner

    LukeSkyrunner

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    Sep 23, 2016
    Thank you. I'd like to buy one. I could use your recommendation on material. I would like one component that would vibrate when the other is in proximity. Distance would be 6 to 12 inches. On the smaller side would be best.
     
  4. shrtrnd

    shrtrnd

    3,721
    470
    Jan 15, 2010
    The first place I check for unusual things like this is All Electronics website, Van Nuys, CA.
    They buy a lot of end-of-production run stuff and sell it at reasonable prices.
    They may not have what you want, but it's a possibility.
     
  5. Tha fios agaibh

    Tha fios agaibh

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    699
    Aug 11, 2014
    there are different types of prox switches that work on detecting different materials.

    A inductive prox switch might work better on one material while a lazer type on another...
     
  6. LukeSkyrunner

    LukeSkyrunner

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    Sep 23, 2016
    Thanks. I'm getting some ideas from that site, thanks.
     
  7. Tha fios agaibh

    Tha fios agaibh

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    Aug 11, 2014
    For instance some lazer or infrared types do not work well detecting shinny metal objects because it scatters the light.

    So what material are you detecting?
     
  8. LukeSkyrunner

    LukeSkyrunner

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    Sep 23, 2016
    Yeah, I was thinking some type of metal.
     
  9. Tha fios agaibh

    Tha fios agaibh

    2,088
    699
    Aug 11, 2014
    Your probably wanting an infrared type because of the long distance.
    If you can use a separate reflector, or two switches (one sends light and the other receives) you'll get more reliable results if the distance from switch from target keeps changing.
     
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