Voice Coil

A voice coil (consisting of a former, collar, and winding) is the coil of wire attached to the apex of a loudspeaker cone. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it. The term is also used for voice coil linear motors, which produce a larger force and move a longer distance but work on the same principle.

Read more about Voice CoilOperation, Design Considerations, Overhung & Underhung Coils, Other Uses For The Term

Other articles related to "voice coil, voice coils, coil":

Woofer
... the electrodynamic driver, which typically uses a stiff paper cone, driven by a voice coil which is surrounded by a magnetic field ... The voice coil is attached by adhesives to the back of the speaker cone ... The voice coil and magnet form a linear electric motor ...
Pioneer HPM-100 - Features
... The HPM super-tweeter design has no dome, magnet, voice coils, or any moving parts at all ... larger magnet with a lightweight cone and edgewise voice coil ... The voice coil, voice coil assembly, and cone in the tweeter are bonded with an acoustically compatible epoxy resin to help increase the rigidity of the entire vibrating configuration, meant to improve ...
Electric Motor - Operating Principle - Magnetic - Stepper Motors
... As each coil is energized in turn, the rotor aligns itself with the magnetic field produced by the energized field winding ... unusable, and the speed limitation made them uncompetitive—thus newer hard disk drives use voice coil-based head actuator systems ... (The term "voice coil" in this connection is historic it refers to the structure in a typical (cone type) loudspeaker ...
Voice Coil - Other Uses For The Term
... The term voice coil has been generalized and refers to any galvanometer-like mechanism that uses a solenoid to move an object back-and-forth within a ... it is commonly used to refer to the coil of wire that moves the read-write heads in a moving-head disk drive ... In this application, a very lightweight coil of wires is mounted within a very strong magnetic field produced by rare earth permanent magnets ...
Speaker Driver - Operation
... In operation, a signal is delivered to the voice coil by means of electrical wires, from the amplifier through speaker cable, then through flexible tinsel wire to the ... act as a tensioned spring centering mechanism, to both concentrically center the voice coil within the magnet assembly, and to center the front-to-back voice coil position within the magnet ... The voice coil and magnet essentially form a linear motor working against the centering spring tension of the spider and surround ...

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    Jonathan Swift (1667–1745)