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How do Hoop Mode Transducers Work?

  1. Jun 17, 2016 #1
    So I am looking to possibly use a ring transducer that has a hoop vibration mode to power a sonoluminescence experiment I am doing for school. I am attaching a picture of the set-up I have now and the aluminum disc in the picture is where I will epoxy the transducer so it can send sound waves into the water. My question is, if I lay lay a piezoelectric ring transducer on a flat aluminum disc and epoxy it, since it is in hoop mode which to me means that it will be having mechanical movement perpendicular to the direction of the water, will any sound energy be transferred to the water? Please help me I am very lost in my research right now. Thank you!
  2. jcsd
  3. Jun 17, 2016 #2
    Forgot to attach the picture, here it is:

    Attached Files:

  4. Jun 17, 2016 #3


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    Staff: Mentor

    Is that the right picture?
  5. Jun 17, 2016 #4
  6. Jun 18, 2016 #5


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    Staff: Mentor

    I can't answer your question. But SL demonstration is more often than not marked by failure, it seems, so you would do well to read of the travails of others before diving in, e.g.,

    Good luck with it all. thumbsup.gif
  7. Jun 18, 2016 #6

    jim hardy

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    Gold Member

    i never messed with 'hoop transducer'

    can you post its datasheet ?

    And what does "perpendicular to the direction of the water" mean ? Perpendicular to plane of your flat disc ?
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