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About vehicle presence detectors

Discussion in 'General Electronics Discussion' started by guysegal, Dec 2, 2009.

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  1. guysegal

    guysegal

    1
    0
    Dec 2, 2009
    Hello
    I have a question about weight sensors.
    what kind of sensors do I need that can indicate that a car is in a parking space - the sensor need to be inside the roadway, in a depht of approximately 30cm.
    what is the price of that sensor?

    thank you
     
  2. Resqueline

    Resqueline

    2,848
    2
    Jul 31, 2009
    I can't see that a weight sensor would be feasible in this application.
    It would have to be an inductive metal detector, consisting of a buried coil and some topside electronics.
    That's the way streetlight sensors are made.
    It could be homemade for a few dollars.
    I have no info about commercial products.
     
  3. neon

    neon

    1,325
    0
    Oct 21, 2006
    Well before you start digging dirt consider this a simple laser diode and a mirror reflecting to a detector. it is kind of big. actually harbor freight.com has a dtector $20.00 that chines at a remote site on motion however when the car stop no more alarm. wajnt to know more?
     
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