Innovative acoustic and sound insulation components

Innovative acoustic elements

Together with more than 15 industrial license and cooperation partners, the Acoustics Department offers an international platform for innovative developments with the aim of optimizing the acoustic system quality of complex products and structures.

 

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Sound absorber
© Fraunhofer IBP
sound absorber
© Fraunhofer IBP

This is a sound absorber covered with sound-reflecting lamellar panels; it can be optimally tuned to medium frequencies (250 - 500 Hz). Its robust design makes it ideal for use in products such as heating systems and air conditioning units.

License, know-how and cooperation partner: KUTZNER + WEBER

Broadband compact absorber
© Fraunhofer IBP
Broadband compact absorber
© Fraunhofer IBP

This highly absorbent, non-abrasive module is used, for example, as a space-saving lining for the walls of anechoic acoustic measurement chambers with precision Class 1 according to ISO 3745 from 50 to 8000 Hz.

License, know-how and cooperation partner: FAIST, RENZ

asymmetrically structured absorber
© Fraunhofer IBP
 asymmetrically structured absorber
© Fraunhofer IBP

This absorber is used as a slender, porous lining for anechoic chambers and has a high absorption (> 99 percent) and reflection capacity (> 70 percent).

License, know-how and cooperation partner: FAIST

Microperforated acrylic glass absorber
© Fraunhofer IBP
Microperforated acrylic glass absorber
© Fraunhofer IBP

The optimum performance of this micro-perforated self-cleaning absorber in the medium frequency range of 125 Hz to 1 kHz is exactly calculable. It can be visually integrated into the interior design without influencing transparency.

License, know-how and cooperation partner: FRITZ, normalu BARRISOL

angular flue silencer
© Fraunhofer IBP
angular sound absorber
© Fraunhofer IBP

This sound absorber is fitted directly inside the flue. High sound absorption down to below 50 Hz without additional pressure loss. The smooth metal surfaces are easy to clean.


License, know-how and cooperation partner: NIESSING

cleanable inline silencer
© Fraunhofer IBP
cleanable inline silencer
© Fraunhofer IBP

The sound absorber is integrated into the flue and is effective against low-frequency noise. It's space-saving construction achieves high damping without any loss in pressure.

License, know-how and cooperation partner: KUTZNER + WEBER, NIESSING

 active resonance absorber
© Fraunhofer IBP
 active resonance absorber
© Fraunhofer IBP

This activated resonance absorber for ventilation ducts achieves high damping at low frequencies. It is available as modular system with small cassettes (10 liters).

License, know-how and cooperation partner: TECHNOFIRST

Porous recycling glass
© Fraunhofer IBP
Porouse recycling glass
© Fraunhofer IBP

Recycled waste glass with a variable micro- and macro-porous structure for high sound absorption and low heat conduction. This light, non-flammable sound absorber can be used for screens, casings, suspended ceilings or noise barriers.

License, know-how and cooperation partner: LIAVER, STO

bonded panel resonator
© Fraunhofer IBP
bond panel resonator
© Fraunhofer IBP

Acoustic design for demanding rooms. This multi-functional acoustic module is a slim  low frequency absorber (down to below 50 Hz) with a smooth metallic surface that can be coated as required.

License, know-how and cooperation partner: FAIST, RENZ

active resonance absorber for exhaust ducts
© Fraunhofer IBP
active resonator
© Fraunhofer IBP

This active resonance absorber for exhaust ducts achieves high damping at low frequencies. It is a temperature-resistant modular system which is powered by direct current.

License, know-how and cooperation partner: KUTZNER + WEBER

mobile soundproof elements
© Cenotec
cenotec soundproof elements
© Cenotec

Inflatable membrane elements provide effective temporary noise control. They are light, robust and have been tested in the field, for example at construction sites, at open-air events and other sources of temporary noise. Their audible effect can be compared with solid sound screens.


License, know-how and cooperation partner: CENOTEC

A transparent sound absorber with inherent damping properties, which improves acoustics without affecting transparency or the architectural design.


License, know-how and cooperation partner: normalu BARRISOL, NIMBUS

Microperforated automobile absorber
© Fraunhofer IBP
Microperforated automobile absorber
© Fraunhofer IBP

This absorber is an alternative acoustic material with an almost-closed surface that has been developed for the automotive industry. Its absorption capacity is exactly calculable.

Microperforated glass absorber
© Fraunhofer IBP
Microperforated glass absorber
© Fraunhofer IBP

Finely perforated flat glass panel with precisely adjustable sound absorption. Acoustically highly effective, the completely transparent offsets are intended for use in front of windows and façades and are extremely easy to clean.


License, know-how and cooperation partner: AKUSTIK + RAUM

Absorber strip
© Fraunhofer IBP
Absorber strip
© Fraunhofer IBP

The absorber strips are integrated flush into thermally-activated concrete ceilings and make use of specific grating effects to improve the acoustics in a room with hardly any effect on the thermal behavior and appearance of the ceiling.

License, Know-how and cooperation partner: INNOgration

Rim absorber
© Fraunhofer IBP

Micro-perforated absorber integrated into the rim to attenuate tire cavity resonance.

License, Know-how and cooperation partner: Daimler