In the early nineteenth century, Ernst Chladni added another dimension to wave experiments by sprinkling sand on a thin plate and using a violin bow to induce vibrations. The sand that collected along the nodal lines of the wave patterns painted clear and beautiful pictures of the various modes of vibration.
The Chladni Plates Kit and a Wave Driver allow continuous vibrations to be produced at measurable frequencies. Students can determine the resonant frequencies of the plates and examine the modes of vibration at any frequency.
The Chladni Plates Kit includes a 24 cm x 24 cm square plate, round plate, 0.8 kg of extra-fine sand, and a sand shaker. The round plate can be vibrated about its center or about an offset point to investigate both symmetric and asymmetric modes of vibration.
- 1x Square Chladni Plate (24 cm sides)
- 1x Circular Chladni Plate (24 cm diameter)
- 1x Sand, extra fine (1 kg)
- 1x Sand Shaker
This product can expose you to crystalline silica, which is known to the State of California to cause cancer. For more information, see www.P65Warnings.ca.gov.
While the Chladni plate can be set into vibration manually (using a violin bow for instance) we highly recommend mechanically driving it at various frequencies.
Requires One Of These
The Mechanical Wave driver requires a function generator providing up to 1 A to an 8 Ω impedence. And the Chladni plates operate best with one that provides a wide range of frequencies. Among PASCO products, here are the function generators that can be used.