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  1. J

    Ultrasonic Transducer

    Hi guys, I have a ultrasonic transducer which consist of 2 parts - a transmitter and a receiver. I need to place the the transmitter and receiver at different places. My receiver must be able to transmit the measured distance wireless-ly to a PDA. I am confused about: Whether I need to...
  2. J

    Problems with Photoelectric Sensors

    Sorry for using those unspecific terms. I am a student studying on electronics. Basically, I need a sensor to detect changes in environment. One example is: to detect a person passing through a walkway. I found up on this photoelectric sensor, which is used to detect changes in...
  3. J

    Problems with Photoelectric Sensors

    Hi guys, newbie here. Can I ask if a normal remote photoelectric sensors can be mounted on a PCB board? Can it be used to measure distances? And what about the electrical supply? Thank you!

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