Brass Helmholtz Resonator, Sea Shell
Glass Helmholtz Resonators
Glass Bottles

 

Code Number: 3D30.40

Demo Title: Helmholtz Resonator

Condition: Good

Principle: Resonance in Pipes

Area of Study: Oscillations & Acoustics

Equipment: 

Brass Helmholtz Resonator, Glass Helmholtz Resonators, Sea Shell, Variable Resonator, and Homemade Resonator.

Procedure:

No preparation necessary other than occasional oiling of the variable resonator.

CAUTION: The glass resonators are very fragile!!

The Sea Shell is not a Helmholtz Resonator.  The air volume of the shell will be exited at the shells resonant frequencies, of which there should be several.  This shell has several resonances at frequencies below 300 Hz.

References:

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3D30.40 - Helmholtz Resonator - Pop Bottles