Angelakos, Diogenes J. Formerly, College of Engineering, University of California, Berkeley, California.
Last reviewed:January 2020
- Sound-resonant pipes
- Microwave-resonant cavities
- Quality factor
- Optical cavity resonators
- Related Primary Literature
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An enclosure capable of resounding or resonating and thereby intensifying sound tones or electromagnetic waves. Resonance is the phenomenon which results when the frequency of the impressed driving force is the same as the natural vibration of the cavity. Vibrating rods, the tuning fork, musical instrument strings, radio and television channel tuners, and so forth, constitute resonating systems as well. The cavity resonator enclosure has a volume which stores energy oscillating between one form and another. In the case of sound, the oscillation is between displacement and velocity of particles. In the case of electromagnetic waves, the energy oscillates between the magnetic and the electric fields. See also: Musical instruments; Tuning fork; Vibration
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