driver circuit for ultrasonic sensor

Discussion in 'The Projects Forum' started by tyc8159, Jan 14, 2007.

  1. tyc8159

    Thread Starter New Member

    Dec 6, 2006
    6
    0
    We currently doing a circuit to drive a 2MHz ultrasonic sensor. The results we got is inconsistent echo signals, even we put a aluminium plate 50cm in front of it. Is anyone have this exprience before? I also looking for some useful resources in designing the circuit. Please leave your opinions here. Thanks
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    2 MHz is quite high for an ultrasonic sensor. Can you post a schematic to give us a better feel for the circuit you are using?

    hgmjr
     
  3. ropotic

    New Member

    Jan 15, 2007
    1
    0
    2 MHz may be good for an ultrasonic sensor. Can you post a schematic to give us a better feel for the circuit you are using?
    ropotic
    mostafa_sh500@yahoo.com
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Hi,

    2 MHz is way too high for ultrasound. The mechanical element would have to be moving above the speed of sound.
     
  5. Ganapati

    New Member

    Aug 2, 2006
    2
    0
    Which type of transducer you are using ?
    I am using electrostatic transducer & I am getting good results.
    If possible let me have look at the circuit you are using.
    If you are using electrostatic transducer, I will send you my circuit.
    suhas_avg@yahoo.co.in
    - Suhas
     
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