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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

    avlguy

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    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

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    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".

    Harald
     
  3. shrtrnd

    shrtrnd

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    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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