Electromagnetics[change | edit source]
|Electricity · Magnetism|
In electromagnetics a cavity resonator is a resonator composed of a space that is usually surrounded by a dielectric or metal which allows standing wave patterns at particular frequencies, eigenmodes, correlated to their size, shape, and material.
Music[change | edit source]
Most musical instruments have resonators. They are the parts which makes the sound louder. A vibraphone, for example, has long tubes underneath the keys. It also has a special effect: a mechanism which, when it is turned on, opens and shuts the resonators very quickly so that a trembling sound is heard.