Acoustic Material Testing

With today’s growing focus on noise-control issues and the emergence of sound quality as an important aspect of product design, acoustic material testing is becoming increasingly relevant to engineers, designers and manufacturers from a broad range of industries.

For example, it is crucial to predict the impact of using specific noise-control materials at an early stage in the development of a machine or of equipment. Analytical and numerical techniques can help to make the prediction with mulit-layered structures and complex geometrics, provided that the acoustic characteristics of the constituent materials are determined with sufficient accuracy.

Brüel & Kjær offers a complete Acoustic Material Testing soultion for evaluating both sound absorption and sound transmission properties of small samples in a tube. Sound absorption measurements are according to ISO 10534−2 and ASTM E1050 international standards. Sound transmission loss measurements are based on the transfer matrix method.