A type of motor used to move the access arm of a disk drive in very small increments. Like the voice coil of a speaker, the amount of current determines the amount of movement. Voice coils ...

At the heart of the M2 subwoofers is a state-of-the-art composite voice coil, meticulously engineered to withstand extreme heat and adverse conditions. This innovation ensures consistent power ...

the “Magnetic Fluid” in that Magnetic Fluid Driver really is "an oil-type liquid filled with magnetic particles that is injected into the space between the driver magnet and voice coil", but ...

[TheBackyardScientist] decided to build a machine to create the gas rings, and it’s quite interesting to see them go through several iterations before settling on a voice coil based poppet valve ...