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Sound waves, ultrasound

  1. Dec 8, 2009 #1
    Hey, i never quite knew where to post this so hope its okay here.
    can sound waves specifically ultrasound around the 25 kHz mark be directed sort of how a laser pen directs light.

  2. jcsd
  3. Dec 8, 2009 #2


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    Gold Member

    Sure, there are a myriad of ways to create a highly directional sound beam though the principle is similar to antennas than a laser. However, I do not know how large the radiator would be since I work with electromagnetics but the principles are the same.
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