Corona-effect sound emitter
First Claim
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1. A corona-effect emitter, comprising a metal housing and a thin metal plate closed therewith;
- a high frequency oscillator generating in operation disruptive electro-magnetic waves, a modulation transformer, and a power supply transformer mounted on said plate such that said housing with said plate form a first Faraday cage; and
a needle-shaped discharge electrode having a tip and being electrically connected to said high frequency oscillator and producing corona discharge and a counter electrode spaced from the discharge electrode and surrounding the latter, said counter electrode forming a second Faraday cage around said tip, said modulation transformer and said power supply transformer each having a primary winding and a secondary winding, the secondary windings of said power supply transformer and said modulation transformer being respectively positioned inside the first Faraday cage and above said plate, and the primary windings of said power supply transformer and said modulation transformer being respectively positioned outside said first Faraday cage and below said plate so that said metal plate extends between the secondary windings and primary windings of the respective transformers.
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Abstract
A corona effect sound emitter including a discharge electrode producing corona discharge and surrounded by a spherical counter electrode is partially inserted in a housing which encloses a high frequency generator, modulation transformer and a power supply transformer of which the power supply transformer supplies the discharge electrode with electric current. A thin plate of a magnetic metal transversally extends in the housing so that secondary windings of the transformers are positioned above the plate and are separated from the primary windings of the transformers disposed below the plate.
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Citations
12 Claims
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1. A corona-effect emitter, comprising a metal housing and a thin metal plate closed therewith;
- a high frequency oscillator generating in operation disruptive electro-magnetic waves, a modulation transformer, and a power supply transformer mounted on said plate such that said housing with said plate form a first Faraday cage; and
a needle-shaped discharge electrode having a tip and being electrically connected to said high frequency oscillator and producing corona discharge and a counter electrode spaced from the discharge electrode and surrounding the latter, said counter electrode forming a second Faraday cage around said tip, said modulation transformer and said power supply transformer each having a primary winding and a secondary winding, the secondary windings of said power supply transformer and said modulation transformer being respectively positioned inside the first Faraday cage and above said plate, and the primary windings of said power supply transformer and said modulation transformer being respectively positioned outside said first Faraday cage and below said plate so that said metal plate extends between the secondary windings and primary windings of the respective transformers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a high frequency oscillator generating in operation disruptive electro-magnetic waves, a modulation transformer, and a power supply transformer mounted on said plate such that said housing with said plate form a first Faraday cage; and
Specification