Sound Wave Dancers is a twist on the typical Kundt’s Tube science experiment where standing sound waves within a tube cause small objects to “levitate” in a pattern indicating the nodes. In the version I have created, two frequencies are generated, one fixed and one adjustable. As the frequencies mix (beat) together, the “levitated” beads do a “dance” to the beat. Dramatic lighting and colored beads add visual appeal.
The two tones are generated by an Arduino Uno which also drives a LCD display which shows the frequencies. The user adjusts the frequency via an encoder wheel. A small amplifier in the control box powers the two speakers (one on each end of the tube). Blue lighting sets off the florescent beads within the tube and creates a unique “lava” effect. While the sound is quite loud inside the tube, the chamber is sealed and the noise is quite moderate when operating.
This exhibit was built by me in my garage and “lab”. It involved woodworking, metal machining, electronics, and software.
This piece is currently on display at the Exploration Station in Grover Beach, CA
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Undercover in an iPhone Factory (video)
Wearables — Go with silicone
Electronics — Shift away from basic arithmetic
Biohacking — Bunnies Book “The Hardware Hacker” Applies to Biohackers
No comments yet.
Sorry, the comment form is closed at this time.