Chladni Plates - Speaker


Build a simple Chladni plate using a 6" x 6" metal sheet, a 2 watt speaker, powered with a 20 gain amplifier and phone. Sprinkle sand on the sheet, and play various sound frequencies to reveal the sheet's assortment of resonant vibrational modes. 

Along with the plate demo itself, an amplifier can be made fairly easily with an LM386 op amp. Download instructions for making the amplifier under associated files or can be found here

Chladni Plates with Speaker

Download instructions

Download associated files

PDF icon sps demos - Audio Amplifier.pdf (447.36 KB)

Science Subject

Level of Difficulty (1-5)