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A soundproofing system is used to insulate sound producing devices or parts of systems, especially vibrating conveyers. Such a system includes insulating elements that are provided with an inner face in the direction of the sound source and an outer face in the direction away from the sound source.

A soundproofing system is used to insulate sound producing devices or parts of systems, especially vibrating conveyers. Such a system includes insulating elements that are provided with an inner face in the direction of the sound source and an outer face in the direction away from the sound source. A sound absorbing membrane which is made of a textile material and, more particularly, at least partially consists of glass fiber threads and/or woven wire, is arranged in the region of the inner face. The sound absorbing membrane is the inner skin of a covering. The covering includes an outer skin made of textile material. A soft insulating material comprising fiber mat material is arranged together with solid flat material in between the inner and outer skin of the covering. The insulating element offers optimal usage of all three elements, i.e., damping diaphragm, insulating material and at least one reflecting surface on the solid flat material.

대표청구항 ▼

A soundproofing system is used to insulate sound producing devices or parts of systems, especially vibrating conveyers. Such a system includes insulating elements that are provided with an inner face in the direction of the sound source and an outer face in the direction away from the sound source.

A soundproofing system is used to insulate sound producing devices or parts of systems, especially vibrating conveyers. Such a system includes insulating elements that are provided with an inner face in the direction of the sound source and an outer face in the direction away from the sound source. A sound absorbing membrane which is made of a textile material and, more particularly, at least partially consists of glass fiber threads and/or woven wire, is arranged in the region of the inner face. The sound absorbing membrane is the inner skin of a covering. The covering includes an outer skin made of textile material. A soft insulating material comprising fiber mat material is arranged together with solid flat material in between the inner and outer skin of the covering. The insulating element offers optimal usage of all three elements, i.e., damping diaphragm, insulating material and at least one reflecting surface on the solid flat material. plying an electric field through the silica-based glass material, said electric field having a magnitude close to and less than the dielectric breakdown field of the silica-based glass material; while applying said electric field, ramping down the temperature from said elevated temperature to a temperature lower than said optimum poling temperature at a rate slow enough to allow the silica-based glass material to be at a temperature close to said optimum poling temperature for a sufficient time to yield a maximum non-zero electro-optic nonlinearity of the silica-based glass material for the applied electric field and the optimum poling temperature; and turning off the electric field and allowing the silica-based glass material to return to an ambient temperature. 2. The method as defined by claim 1, wherein ramping up the temperature comprises raising the temperature of the silica-based glass material to at least 400° C. 3. The method as defined by claim 1, wherein the electric field is applied for a period of time of at least one minute. 4. A method of inducing an electro-optic nonlinearity in a silica-based glass material having a dielectric breakdown field, the method comprising: heating the silica-based glass material; ramping up the temperature to an elevated temperature at a rate which does not physically damage the silica-based glass material, said elevated temperature selected to be at least as high as an optimum poling temperature for inducing the electro-optic nonlinearity in the silica-based glass material; applying an electric field through the silica-based glass material, said electric field having a magnitude close to and less than the dielectric breakdown field of the silica-based glass material, wherein said dielectric breakdown field of the silica-based glass material is approximately 800 V/μm; while applying said electric field, ramping down the temperature from said elevated temperature to a temperature lower than said optimum poling temperature at a rate slow enough to allow the silica-based glass material to be at a temperature close to said optimum poling temperature for a sufficient time to yield a maximum non-zero electro-optic nonlinearity of the silica-based glass material for the applied electric field and the optimum poling temperature; and turning off the electric field and allowing the silica-based glass material to return to an ambient temperature. 5. A method of inducing an electro-optic nonlinearity in a silica-based glass material having a dielectric breakdown field, the method comprising: heating the silica-based glass material, wherein said silica-based glass material is an optical fiber; ramping up the temperature to an elevated temperature at a rate which does not physically damage the silica-based glass material, said elevated temperature selected to be at least as high as an optimum poling temperature for inducing the electro-optic nonlinearity in the silica-based glass material; applying an electric field through the silica-based glass material, said electric field having a magnitude close to and less than the dielectric breakdown field of the silica-based glass material; while applying said electric field, ramping down the temperature from said elevated temperature to a temperature lower than said optimum poling temperature at a rate slow enough to allow the silica-based glass material to be at a temperature close to said optimum poling temperature for a sufficient time to yield a maximum non-zero electro-optic nonlinearity of the silica-based glass material for the applied electric field and the optimum poling temperature; and turning off the electric field and allowing the silica-based glass material to return to an ambient temperature. 6. A method of inducing a second-order nonlinearity in a silica-based glass material, the method comprising: heating the silica-based glass material from an ambient temperature to an elevated temperature at a rate which does