How Does a Mist Maker Create Mist?

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SUMMARY

The discussion clarifies the operation of mist makers, which utilize ultrasonic technology to create mist. Specifically, these devices employ a submerged piezoelectric crystal that generates ultrasonic waves, causing surface tension to form microscopic droplets that are released into the air. Unlike traditional methods that involve heating water or using dry ice, mist makers produce mist without altering the water temperature. The effectiveness of these devices diminishes if submerged too deeply, and they typically do not generate large volumes of mist suitable for theatrical use.

PREREQUISITES
  • Understanding of ultrasonic technology
  • Familiarity with piezoelectric materials
  • Knowledge of surface tension principles
  • Basic concepts of fluid dynamics
NEXT STEPS
  • Research the principles of ultrasonic transducers
  • Explore the applications of piezoelectric crystals in various technologies
  • Learn about surface tension and its effects on fluid behavior
  • Investigate alternative mist generation methods, such as dry ice fogging
USEFUL FOR

This discussion is beneficial for engineers, product designers, and hobbyists interested in ultrasonic technology and mist generation applications.

Micko
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Hello people,
please, can someone explain how mist maker work?
I heard it use ultrasound, but don't know how works.
Thanks
 
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I've never heard of a "mist maker" - do you have a link to a product?
 
It's made by highly trained monkeys from brazil.

It is said that there is currently only one functioning socalled "mist-maker" left in the world, although it's location remains unknown...
 
I think these operate by beating a submerged ceramic diaphragm at ultrasonic frequencies, but no idea why that works (nor whether the effect occurs at the diaphragm itself or at where the ultrasound is directed on the water/air surface).
 
I thought they just had dry ice in them!
 
They use a submerged piezoelectric crystal somewhat underneath the surface of the water to broadcast an ultrasonic beam upwards. This puts high frequency waves on the surface, where surface tension causes some of the wave crests to pinch off into microscopic droplets that are propelled into the air, where they float around as mist. It doesn't heat the water, and it doesn't produce water vapor, which is transparent. They make lots of teeny tiny droplets which, if the sides of your container aren't high enough, will float outside the bowl and get everything around them very wet. They don't work well if submerged too deeply in the water, and they don't usually put out a large volume of mist like you'd see in a theatrical production (for that I think they use dry ice and it's a completely different process).

Hope that helps.
 

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