Pulse timer circuit. help.

Discussion in 'The Projects Forum' started by vishalb, Apr 27, 2010.

  1. vishalb

    Thread Starter New Member

    Apr 27, 2010
    Hi guys, I have build a 40khz ultrasonic transmitter and receiver circuit. Now I need to obtain the time taken for the signal received by the receiver circuit from the transmitter. What kind of counter circuit can I use to measure the time? I would really appreciate some help.
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    Have you considered a microController(uC)?

    You can use the timing function to measure the time-of-flight of the ultrasonic signal. This method will allow for easy transfer of the received time to a computer or display with minimal part count.
  3. kingdano

    Senior Member

    Apr 14, 2010
    you could accomplish that with a BASIC Stamp from parallax pretty easily - and as a bonus PBASIC is as easy a language as you can use.

    can you tell us about the signal voltage level the device outputs?
  4. vishalb

    Thread Starter New Member

    Apr 27, 2010
    I have used uC before, however, I have to use only analogue circuit do achieve the above. Using some sort of a counter :)
  5. Bernard

    AAC Fanatic!

    Aug 7, 2008
    Do you really need an analog counter? , or discreet components? Or what?