How to build your own DIY makeshift levitation machine at home • The Register

https://www.theregister.co.uk/2017/08/16/engineers_show_how_to_construct_makeshift_acoustic_levitator/

Engineers at the University of Bristol in the UK have published a rough guide to building a simple levitation chamber that uses sound waves to suspend objects.

A paper published in the Review of Scientific Instruments this month shows how it can be done within the confines of your own home lab.

Using a 3D printer, commercial ultrasonic transducers, some amplifier circuits, a 20V supply, and a simple microcontroller kit or Arduino board, the levitator can be built, emitting 40kHz waves on a single axis.

figure

FIG. 1.

2 Comments

  1. Tomi Engdahl says:

    Floating Ants and Drops of Liquid with an Acoustic Levitator
    http://hackaday.com/2017/08/24/floating-ants-and-drops-of-liquid-with-an-acoustic-levitator/

    Amuse your friends, amaze your enemies, and perplex ants and other insects, insofar as they are capable of perplexment. Accomplish all this and more with this handy dandy homebrew acoustic levitator.

    Before anyone gets to thinking about using this technique to build a hoverboard that actually hovers, it’s best that you scale your expectations way, way down. Still, being able to float drops of liquid and small life forms is no mean feat, and looks like a ton of fun to boot.

    Acoustic Levitator
    http://www.instructables.com/id/Acoustic-Levitator/

    Reply
  2. Tomi Engdahl says:

    Hovering Questions About Magnetic Levitation
    https://hackaday.com/2017/10/08/hovering-questions-about-magnetic-levitation/

    Who doesn’t love magnets? They’re functional, mysterious, and at the heart of nearly every electric motor. They can make objects appear to defy gravity or move on their own. If you’re like us, when you first started grappling with the refrigerator magnets, you tried to make one hover motionlessly over another. We tried to position one magnet over another by pitting their repellent forces against each other but [K&J Magnetics] explains why this will never work and how levitation can be done with electromagnets

    A magnet levitating in mid-air is strong enough to hold up this apple!
    http://www.kjmagnetics.com/blog.asp?p=electromagnetic-levitation

    Can a magnet levitate or float above another magnet? Why not – it seems like it should work!

    Reply

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