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Acoustic material characteristics measurement systems

Developing, evaluating, and designing sound insulation materials

Acoustic material measurement systemsVarious sound absorption and insulation materials are used to make industrial products and electric appliances quiet. Evaluating the acoustic characteristics (sound absorption and insulation characteristics) requires measurement system that uses acoustic impedance tubes or a coupled reverberation room and anechoic room. Moreover, developing material with the desired acoustical properties requires software to predict the acoustic properties with material parameters. Nihon Onkyo Engineering offers measurement systems and prediction software for evaluating and predicting acoustic performances.

Photo of the measurement system of the sound absorption coefficient in a reverberation room

TL-LAB sound transmission loss measurement software

TL-LAB works for measurement of the sound transmission loss for acoustical material. The sample is set in the opening between a coupled reverberation room and anechoic room.
Photo of the measurement system of the sound absorption coefficient in a reverberation room

Alphas-LAB sound absorption coefficient by reverberation room method measurement software

Alphas-LAB works for measurement of the sound absorption characteristic of acoustic material under random sound incident conditions. Nihon Onkyo Engineering provides a high-accuracy system that uses the impulse response measurement technique.
Photo of the measurement system of the sound absorption coefficient with impedance tube

WinZacMTX impedance tube measurement system

WinZacMTX works for measurement of the sound absorption under normal incident conditions using the impedance tubes. Nihon Onkyo Engineering offers an incredibly convenient, easy-to-use system.
Photo of flow resistivity measurement system

AirReSys flow resistivity measurement system

AirReSys works for measurement of the flow resistivity, which is the most important parameter for determining acoustic characteristics. The system is designed according to ISO 9053 and provides accurate measurement with 0.5 mm/s air flow velocity.
Photo of tortuosity / characteristic length measurement system

Torvith tortuosity and characteristic length measurement system

Torvith works for the measurement of the macroscopic complexity of the porous structure. This system was developed in collaboration with University of Leuven (KU Leuven) in Belgium and uses ultrasonic sensors.
Photo of the elasticity measurement system

Elastic moduli measurement system

This system measures the elastic moduli, loss factor, and Poisson's ratio of poro-elastic materials. Measurement systems capable of measuring both Young's modulus and the shear modulus are available.
Photo of estimation software of acoustical properties for multilayered structures

STRATI-ARTZ Acoustic characteristic prediction software

STRATI-ARTZ predicts the sound absorption and sound insulation performance of poro-elastic material. This software can be used to predict the acoustical properties of multi-layered structures in various sound incident conditions.
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