moving coil

adj (Electronics) denoting an electromechanical device in which a suspended coil is free to move in a magnetic field. A current passing through the coil causes it to move, as in loudspeakers and electrical measuring instruments, or movement of the coil gives rise to induced currents, as in microphones and some record-player pick-ups

Moving Coil

in low-frequency measurement technology, a component of moving-coil measuring systems that is used in light-beam oscillographs and moving-coil galvanometers. A moving coil is a light coil of wire that is located between the poles of a permanent magnet. In a galvanometer, the moving coil is suspended from very thin metallic ribbons; in an oscillograph, it consists of a very thin wire to which a small mirror is attached.

When a current flows through a moving coil, the coil is deflected in the magnetic field. In moving-coil galvanometers, the magnitude of the deflection is read by means of a microscope. In light-beam oscillographs, it is read on the basis of the deflection of a light beam reflected from the mirror.

REFERENCES

See references under STUB.

R. I. PERETS

单词	moving coil
释义	moving coil moving coil adj (Electronics) denoting an electromechanical device in which a suspended coil is free to move in a magnetic field. A current passing through the coil causes it to move, as in loudspeakers and electrical measuring instruments, or movement of the coil gives rise to induced currents, as in microphones and some record-player pick-ups Moving Coil Moving Coil in low-frequency measurement technology, a component of moving-coil measuring systems that is used in light-beam oscillographs and moving-coil galvanometers. A moving coil is a light coil of wire that is located between the poles of a permanent magnet. In a galvanometer, the moving coil is suspended from very thin metallic ribbons; in an oscillograph, it consists of a very thin wire to which a small mirror is attached. When a current flows through a moving coil, the coil is deflected in the magnetic field. In moving-coil galvanometers, the magnitude of the deflection is read by means of a microscope. In light-beam oscillographs, it is read on the basis of the deflection of a light beam reflected from the mirror. REFERENCES See references under STUB. R. I. PERETS AcronymsSeemad cow
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