Electromagnetic transducer of improved efficiency

Details Electromagnetic transducer of improved efficiency Electromagnetic transducer of improved efficiency

1987-03-30

1989-06-06

Yusko, Donald J.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

381188, 381192, 381196, 381199, 181172, 181173, H04R 702, H04R 704

Patent

active

048378380

ABSTRACT:
An electromagnetic transducer is disclosed wherein separate elongated strips of magnetic material are secured on both sides of a plane containing a flat flexible insulating thin-film diaphragm. Conductors attached to the diaphram extend primarily parallel to the magnetic strips and cause movement of the diaphram when excited electrically. The conductors can also deliver current induced by diaphram movement within the field. The magnetic strips are fastened to a frame that clamps the perimeter of the diaphram. The sub-assemblies containing the magnetic strips provide maximum available area for the propagation of acoustic waves to and from the environment and provide increased flux density.

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