Ultrasonic transducer for standing waves underwater

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SUMMARY

The discussion focuses on selecting ultrasonic transducers for generating standing waves underwater. The user inquires about the limitations of piezoelectric transducers, which operate at specific resonant frequencies, and whether these frequencies can be adjusted to create standing waves. It is established that the frequency of the pulses and the oscillation of the piezoelectric material are critical factors in achieving the desired standing waves. The user also notes that while adjustable frequency devices are possible, most commercial transducers do not include this feature.

PREREQUISITES
  • Understanding of ultrasonic transducers and their operation
  • Knowledge of piezoelectric materials and their resonant frequencies
  • Familiarity with wave mechanics, particularly standing waves
  • Basic principles of acoustics in underwater environments
NEXT STEPS
  • Research specific models of piezoelectric transducers suitable for underwater applications
  • Explore techniques for generating standing waves using ultrasonic frequencies
  • Learn about adjustable frequency ultrasonic transducers and their applications
  • Investigate the impact of pulse frequency on wave generation in underwater acoustics
USEFUL FOR

This discussion is beneficial for electrical engineers, acoustics researchers, and anyone involved in underwater technology development, particularly those focused on ultrasonic applications and wave manipulation.

fpickle
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Hi

I'm not too sure where to post this but since I am, after all, doing a project under the EE department, I thought this might be the best place.

I'm new to acoustics, so what I know is rather minimum.

I'm trying to look for ultrasonic transducers that can manipulate objects underwater. What I'm having trouble now is picking the right transducer. I was hoping to achieve standing waves using the transducer but I seem to have found out that all the piezoelectric transducers operate at a particular resonant frequency only. Does that mean that it can't run at any other frequency, since I would most likely need to adjust the frequency to achieve standing waves?

How about the pulses frequency? Is that the one that causes the standing waves? Or the oscillation of the piezoelectric?

Thanks so much in advance.
 
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You could make a device with adjustable frequency, but the commercial ones don't need that, so they don't have that feature.
 

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