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ACOUSTIC SENSORS & TESTING SOLUTIONS

Acoustic Material Testing

Understanding Acoustic Material Testing

Need to understand how sound and noise control materials work? How about starting with acoustic material testing. Acoustic material testing is essential for optimal sound quality in buildings, vehicles, and public spaces. It is vital in designing noise barriers for highways and railways and reducing noise levels in cities. When it comes to testing the sound absorption properties of materials, the sound absorption coefficient is the go-to metric. The ISO 10534 series of standards and the ISO 354:2003 standard provide clear guidance on how to measure this coefficient in a laboratory setting. However, in real-world situations, it's often necessary to conduct measurements on-site, where the material is actually being used. Understanding acoustic material properties is crucial for creating a comfortable and functional acoustic environment in our daily lives.

In-Situ Sound Absorption

In-Situ sound Absorption solutions provide a comprehensive approach for professionals seeking to evaluate acoustic properties in real conditions. "In situ" refers to taking measurements "on site", in a pre-existing environment, such as a classroom, concert hall, or car. In situ techniques are attractive because they don't require special environments like an impedance tube or a reverberant room. Our in-situ solution includes a high-precision PU probe, user-friendly software, and essential accessories for efficient testing.

Enhancing Acoustic simulations and predictions

Accurately measuring the sound absorption coefficients of materials is crucial for producing realistic numerical simulations. By measuring the absorption properties of materials, engineers can input representative data into a simulation environment and produce accurate acoustic predictions. This is particularly important for industries such as automotive, aerospace, and construction, where simulation-driven design is increasingly important for product development.

Non-destructive testing

Non-destructive testing methods (NDTs) offer valuable information for preservation purposes and help to identify material properties without causing any damage. The impedance gun is a tool that can be used to identify surface lesions on a variety of materials by analyzing changes in sound absorption coefficients. Although typically used for acoustic measurements, this technique can also be applied to identify material alterations. When used in conjunction with Scan&Paint 2D, areas with material loss or surface edges that show the highest sound absorption can be pinpointed as locations with potential lesions.

Sound Transmission Loss

Sound transmission loss (STL) is a measure of a material's ability to reduce the transmission of sound from one side of a partition to the other. It is an essential metric for designing rooms, vehicles and improving acoustics in a variety of environments. Measuring STL allows engineers to select the appropriate materials and configurations for reducing noise transmission, which can be critical in applications such as building construction, transportation, and manufacturing.

ACOUSTIC SENSORS & TESTING SOLUTIONS