Oscillations and Waves > Instruments > Plates, Bars, and Solids > Plates

DCS# 3D40.30

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CHLADNI PLATES

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APPARATUS

chladni plates	202-17-D
sand	202-17-D
Pasco driver	202-17-A3
Pasco amplifier/function generator	202-17-A3
video camera	202-09-D
kimwipe	202

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DESCRIPTION

Sprinkle sand on the plate.  When the function generator is tuned to a resonance frequency of the plate, sand will collect in the nodal lines, and produce different patterns for different standing wave modes.

NOTES

We have a square plate supported at the center and a round plate that can be supported in the center or just off-center.

Use a kimwipe bib to prevent sand from entering the driver.

We also have the bowed version (plate 202-07-A and bow 202-06-B):

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