Definition of Diaphragm (acoustics)
In acoustics, a diaphragm is a transducer used for the conversion between mechanical vibrations and sounds. It is commonly constructed of a thin membrane or sheet of various materials, suspended at its edges. The varying air pressure of sound waves imparts mechanical vibrations to the diaphragm which can then be converted to some other type of signal; examples of this type of diaphragm are found in microphones and the human eardrum. Conversely a diaphragm vibrated by a source of energy beats against the air, creating sound waves. Examples of this type of diaphragm are loudspeaker cones and earphone diaphragms and are found in air horns.
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Frequently asked questions
What is Diaphragm (acoustics)?
In acoustics, a diaphragm is a transducer used for the conversion between mechanical vibrations and sounds. It is commonly constructed of a thin membrane or sheet of various materials, suspended at its edges.