ETS-Lindgren's Anechoic Chambers offer a precision-grade free-field environment used to measure sound source directivity, frequency response, and noise emissions from spherically radiating sound sources. These chambers provide engineered features that achieve outstanding performance results and goals without compromising acoustical concepts and budgets.
These anechoic chambers have a high-performance wall panel system that provides the low-noise environment required to test today’s low-noise products. A precision-grade free-field environment is a product of the anechoic chamber's sound absorption system that consists of melamine wedges installed on a patented clip system that provides fast wedge installation and removal. Unlike other wedge solutions, melamine wedges provide a bright and fiber-free working environment.
Frequency Range
ETS-Lindgren offers a wide range of standard anechoic chambers to meet our client's needs. Standard chamber models have low-frequency cut off points of 80 Hz, 100 Hz, and 160 Hz. Custom chamber designs to meet other performance specifications are available.
Free-Field Region
Standard ETS-Lindgren anechoic chambers have free-field regions with a 1 m to 2 m radius. Custom size free-field regions are available.
Precision-Grade Testing
ETS-Lindgren's standard anechoic chambers are designed to comply with ISO 3745 and ISO 26101 free-field limits for both broadband and pure tone testing.