ELECTRO-DYNAMIC MICROPHONE Russian patent published in 2006 - IPC H04R9/08 H04R11/04

Abstract RU 2290772 C2

FIELD: engineering of electro-dynamic transformers for receiving sound signals.

SUBSTANCE: electro-dynamic microphone contains body, membrane and at least one inductance coil rigidly connected to membrane. Ferrite rod is positioned in the body coaxially to inductance coil, aforementioned rod not being a constant magnet, while inductance coil is provided with measuring circuit and is connected to alternating-current power source.

EFFECT: increased sensitivity of microphone.

8 cl, 5 dwg

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RU 2 290 772 C2

Authors

Zubarev Nikolaj Vladimirovich

Fadin Igor' Mikhajlovich

Dates

2006-12-27—Published

2005-03-02—Filed