Product details

Chladni figures

Chladni figures

Item no.: P2150501

Measurement Type: classical, Mobile (Datalogging)
Experiment Type: Teacher Experiment, Laboratory Experiment

Difficulty Expenditure of Time print
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Principle

Square and round metal plates are brought to vibrate through acoustic stimulations by a loudspeaker. When the driving frequency corresponds to a given Eigen-frequency (natural vibration mode) of the plate, the nodal lines are made visible with sand. The sand is expelled from the vibrating regions of the plate and gathers in the lines because these are the only places where the amplitude of vibrations is close to zero.

Benefits

  • Experiment set-up particularly suitable to visualize resonance
  • Many experiment variations possible
  • Use digital function generator for quick frequency-tuning in other experiments

Tasks

  • Determine the frequencies at which resonance occurs and drive the plate specifically at these frequencies.

What you can learn about

  • Wave length
  • Stationary waves
  • Acoustic vibrations
  • Two-dimensional standing waves
  • Eigen-modes
Document     Filesize
p2150501e.pdf Experiment guide, English 307.67 KB

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