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# Helmholtz Resonator

A brass, spherical Helmholtz resonator based on his original design, circa 1890- 1900.

Helmholtz Resonator is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Helmholtz Resonator books and related discussion.

## Suggested Pdf Resources

Helmholtz Resonance
This activity was developed to introduce students to Helmholtz resonance, and to give students practice making measurements and calculations.
The Helmholtz Resonator
The Helmholtz Resonator. Consider a container of volume V open to the atmosphere through a duct of length ℓ and cross-section S as shown in the figure.
ON CALCULATION OF KIRCHHOFF COEFFICIENTS FOR
Studying the Effects of Filling a Helmholtz Resonator with Spheres
Helmholtz Resonance in a Water Bottle

## Suggested News Resources

2012 Acura RL delivers stunning performance and technology
In an effort to quell road noise transmitted to the RL's cabin, the unique noise reducing wheel uses a polypropylene Helmholtz resonator that encircles the center portion of the inside of the wheel.

## Suggested Web Resources

Helmholtz resonance - Wikipedia, the free encyclopedia
Helmholtz resonance is the phenomenon of air resonance in a cavity, such as when one blows across the top of an empty bottle.
Helmholtz Resonance
A Helmholtz resonator or Helmholtz oscillator is a container of gas (usually air) with an open hole (or neck or port).
Helmholtz Resonator
Helmholtz Resonator. The research of Herman L. F.
Helmholtz Resonators - Basic Analytic Devices
"A Helmholtz resonator or Helmholtz oscillator is a container of gas (usually air) with an open hole (or neck or port).
PVC pipe Helmholtz resonator - Gearslutz.com

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