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Thread: continuous infrared emitter and detector

  1. #1
    Junior Member Newbie
    Join Date
    Oct 2004
    Posts
    6

    Default continuous infrared emitter and detector

    We are looking for an infrared transmitter-detector pair.

    The infrared emitters should be able to emit signal of same strength all the time.The detector should be able to detect it at about 2 m and distinguish it from sunlight. If u have any idea of such a sensor pair please let us know.

  2. #2
    Senior Member T-1000
    Join Date
    Jun 2004
    Location
    Bombay/Mumbai
    Posts
    498

    Default

    Google for 38Khx tsop1738.
    You will find enough circuits.

    The transmitter will have to be made separately,modulated(which means a carrier frequency of 38Khz here) at 38Khz.

    If you search the forum,you will find circuits and a write up too.

  3. #3

    Default

    u can use IR encoder decoder given in the following site


    http://www.aplusindia.net/index.php?...ad718109733ecb

    u can get the circuit in the datasheet.

  4. #4

    Default ice-jee

    TSOP 1738 cant be used for continous detection , thatz what i learnt thru some post in the forum ..

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