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 magnetic field. In particular, 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. The voice coil is the motor part of the servo system that positions the heads: an electric control signal drives the voice coil and the resulting force quickly and accurately positions the heads.
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Famous quotes containing the word term:
“No—is a term very frequently employed by the fair, when they mean everything else but a negative. Their yes is always yes; but their no is not always no.”
—Anonymous, U.S. women’s magazine contributor. M, Weekly Visitor or Ladies Miscellany, p. 203 (April 1803)