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Principle

Acoustic cavity resonators possess a characteristic frequency which is determined by their geometrical form. In this case the resonator is excited to vibrations in its resonance frequency by background noise.

Benefits

• Measure the resonance frequencies without additional excitation by using only the ambient noise
• Immediate observation of both, the sound wave signal and the resonance frequencies using FFT
• Measure live while changing the body volume and thus the resonance frequency
• Simplified implementation: all pre-settings already prepared

Tasks

Determination of different resonance frequencies of a resonator depending on the volume.

What you can learn about

• Cavity resonator
• Resonance frequency
• Acoustic resonant circuit

Operating system-independent software included. Computer not provided.