| 摘要 |
<p>The invention relates to the field of acoustics and is designed to create sound waves in a gaseous (air) medium, and can be used to create acoustic waves, including waves that are audible to the human ear, for domestic and industrial purposes. The device for generating acoustic waves consists of an ionizer comprising an ionizing electrode 1, made of an electrically conductive material, and at least one control electrode 2, made of an electrically conductive material. Depending on the shape of electrodes 1 and 2, they may be disposed parallel, concentrically or coaxially to one another. The surface of ionizing electrode 1 includes strongly curved projections 3, for example that are needle-shaped, the tips of which are directed towards the control electrode 2, which is acoustically permeable due to the presence of openings 3 and is designed, for example, in the form of a lattice, while the surface of it is coated with a layer 4 of a material having high resistivity, for example a synthetic coating based on epoxy resins, or contains zones formed by the alternation of a dielectric, for example polyethylene or vinyl, and a conductor (the material from which the control electrode is made). The total surface area of the dielectric zones is greater than that of the conductive zones. Electrodes 1 and 2 are connected in parallel to an electric power source 4 and an electrical signal modulator 5. In the second embodiment, the electrodes are a pack of conductors with a strongly curved surface, and the packs of both electrodes are inclined towards the electrodes adjacent thereto. According to the second embodiment, the invention consists of an ionizer 1 formed by two equidistantly spaced electrodes 2 and 3 in the form of packs of conductors (elements) having a strongly curved surface 4 and which are oriented towards the electrodes opposite them and connected to a power supply 5 and a modulator 6.</p> |
