Information about Diaphragm (acoustics)
In a loudspeaker, a diaphragm (also known as the cone) is the thin, semi-rigid membrane attached to the central magnet. The magnet induces the diaphragm to vibrate, producing sound. This diaphragm is also found in headphones.
Using this in reverse converts air vibrations (sound) into electrical signals, as in several common designs of microphone.
Similarly, the eardrum uses this same principle, using a diaphragm to stimulate nerves to transmit a neural "image" of sound to the brain. In loudspeakers, cellulose fiber (paper) was the most common original material used to make the diaphragms. Paper density is modified to produce desired sound characteristics by means of refining the paper. Cellulose continues to be the most common material used in speaker cones. Today, many synthetic fibers and binders are added to enhance the acoustic properties as well as the power handling. Other materials used today are polypropylene and aluminum.
Using this in reverse converts air vibrations (sound) into electrical signals, as in several common designs of microphone.
Similarly, the eardrum uses this same principle, using a diaphragm to stimulate nerves to transmit a neural "image" of sound to the brain. In loudspeakers, cellulose fiber (paper) was the most common original material used to make the diaphragms. Paper density is modified to produce desired sound characteristics by means of refining the paper. Cellulose continues to be the most common material used in speaker cones. Today, many synthetic fibers and binders are added to enhance the acoustic properties as well as the power handling. Other materials used today are polypropylene and aluminum.
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An artificial membrane, also called a synthetic membrane, is a membrane prepared for separation tasks in laboratory and industry. Its active part, which permits selective transport of material, usually consists of polymers or ceramics, seldom glass or metals.
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magnet is a material or object that produces a magnetic field. A "hard" or "permanent" magnet is one which stays magnetized for a long time, such as magnets often used in refrigerator doors.
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Sound is a disturbance of mechanical energy that propagates through matter as a wave (through fluids as a compression wave, and through solids as both compression and shear waves).
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Headphones (also known as earphones, earbuds, stereophones, headsets, or by the slang term cans) are a pair of tiny loudspeakers, or less commonly a single speaker, with a way of holding them close to a user's ears and a means of connecting them
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Electricity (from New Latin ēlectricus, "amberlike") is a general term for a variety of phenomena resulting from the presence and flow of electric charge. This includes many well-known physical phenomena such as lightning, electromagnetic fields and electric currents,
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microphone, sometimes referred to as a mike or mic (both IPA pronunciation: [maɪk]), is an acoustic to electric transducer or sensor that converts sound into an electrical signal.
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The tympanic membrane, colloquially known as the eardrum, is a thin membrane that separates the external ear from the middle ear. Its function is to transmit sound vibrations from the air, conducted through the external acoustic meatus to the ossicles inside the
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A nerve is an enclosed, cable-like bundle of axons (the long, slender projection of a neuron). Neurons are sometimes called nerve cells, though this term is technically imprecise since many neurons do not form nerves, and nerves also include the glial cells that
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In animals, the brain or encephalon (Greek for "in the skull"), is the control center of the central nervous system, responsible for behavior. The brain is located in the head, protected by the skull and close to the primary sensory apparatus of vision, hearing,
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