RESEARCH CENTRES

For facilities that deal with research, innovation and development, both in the business and private sector as well as in academia, TECNOACUSTICA designs and manufactures acoustic testing booths, anechoic and semi-anechoic chambers (ISO 3745) and reverberating chambers (ISO 3744 –ISO 140- ISO 354).

This type of construction stems from the need for companies or research centres, academic and otherwise, to be able to certify and acoustically characterise products as part of the EC directive, from digital readers to fans and from washing machines to construction equipment. Another requirement of these companies is to appropriately soundproof, within their laboratories, the areas used to test both the duration and the performance (test benches) of various types of products and to meet these requirements TECNOACUSTICA also designs and manufactures made-to-measure soundproofed testing booths.

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SOUNDPROOFED TESTING BOOTHS

Due to the specific properties of the products that are tested for functionality, durability and stress, besides soundproofing, the soundproofed testing booths may have other requirements such as fire resistant walls and fixtures and the need to have controlled temperatures during testing. TECNOACUSTICA, with its highly skilled technical staff, is able to solve all the various acoustic and fixture requirements (ventilation, transferring exhaust gases etc.) providing the Client with a turnkey service, and offering assistance at all stages in defining the testing booth.

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ANECHOIC AND SEMI-ANECHOIC CHAMBERS

The anechoic and semi-anechoic chambers (for tests under free-field conditions) are designed and researched on the basis of data provided by the Customer, such as frequency and maximum dimensions of the devices being tested.

Guided by the European Standard and by project data, the TECNOACUSTICA technical engineers design the walls, ceiling and floor of the anechoic chamber choosing the most suitable materials, evaluating the most effective form and calculating the most suitable size for achieving the objectives. Sound insulation and sound absorption of the walls and ceiling guide the design: the former ensures that measurement of the noise of the object being tested is not affected by external sounds; while the latter determines the free-field condition by ensuring that the noise is not affected by sound reflections.

TECNOACUSTICA is proud to have made, with valuable collaboration from staff at the Faculty of Engineering of the University of Ferrara, one of the largest double configuration chambers in Europe, both anechoic and semi-anechoic, with unquestionably excellent results. TECNOACUSTICA manufactures anechoic and semi-anechoic chambers for private industries, as well as for universities, meeting specific requirements of the customer and all applicable laws.

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REVERBERATION CHAMBERS

The reverberation chambers (for testing under diffuse-field conditions) are designed on the basis of the frequency limits required by the customer and size of the object being tested. The walls and ceiling of the reverberation chamber are made of materials that guarantee the highest possible reflection. Geometry inside the room is carefully structured and the walls, as well as being perfectly reflective, often have to be skewed to create the best diffuse-field conditions. The reverberation chambers may be used to measure the sound power level of a source (ISO 3744), to determine the sound absorption level of the materials (ISO 354) and to determine the sound insulation of materials (ISO 140 – ISO 717), with, of course, the aid of an acoustically protected receiving chamber.

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SILENT DOORS AND WINDOWS

The testing chambers and reverberation chambers can also be made brickwork and/or concrete. For this type of chamber TECNOACUSTICA proposes its products for the construction of soundproofed glass walls, windows, doors and main doors.

The creation of a fixture with a high noise-reduction level is part of the technical experience that TECNOACUSTICA has acquired over time developing systems for the construction of windows, doors and main doors with very high-noise reduction levels, to achieve, through suitable measures, acoustic reduction up to 60 dB.

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