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what proximity sensor to use?

Discussion in 'Sensors and Actuators' started by avlguy, Nov 30, 2012.

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  1. avlguy


    Nov 30, 2012
    I am trying to determine the most durable, reliable, and cost effective sensor to use. I need the sensor to be durable enough to withstand a high vibration environment that is exposed to the weather and temps as low as -15. It will also need to be triggered from a distance of up to 1.5" away. I know that a reed switch is no good for this and i have been looking at hall effect sensors, as their triggering distance can be controlled by the strength of the magnet used. I am open to any and all comments or suggestions. I do not want to use any trype of switch with external moving parts or one that requires contact.
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    What do you want to sense? Metallic parts, human tissue, other material?

    Does the sensor have to be passive or can it be active? There are a lot of different sensors available. Google "proximity sensor".

  3. shrtrnd


    Jan 15, 2010
    You didn't say much about your application.
    Would an optical sensor of some type fill the bill?
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