Electrical/mechanical transducers

Details Electrical/mechanical transducers Electrical/mechanical transducers

1980-12-11

1984-07-24

Fuller, Benjamin R.

1791155R, H04R 904

Patent

active

044619332

ABSTRACT:
A speech coil 3 in for example a moving-coil type loudspeaker includes a layer of magnetizable material 1 such as plastics tape impregnated with ferric oxide. The tape is wound on to a former 2 and moves with the coil to provide magnetic damping to more accurately center the coil and reduce overshoot of the coil in response to current peaks.

REFERENCES:
patent: 2538691 (1951-01-01), Kim
patent: 4088847 (1978-05-01), Yukimoto et al.

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