The increasing demand for machinery and components with certified sound levels has led many companies to recognize the importance of having a controlled sound environment for conducting measurements.\u00a0<\/i><\/b><\/p>\n
Nevertheless, traditional masonry rooms are not always cost-effective or flexible enough to meet these specific industrial requirements.\u00a0<\/i><\/b><\/p>\n
Therefore, alternative solutions are being considered to better adapt to installation development and provide flexibility.<\/i><\/b><\/p>\n
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Anechoic chambers are targeted for various industries that require <\/span>precise acoustic testing and analysis<\/b>. Industries that commonly employ anechoic and hemi-anechoic chambers include:<\/span><\/p>\n Creating an insulated test environment is essential in the first place for precise noise analysis.\u00a0<\/span><\/p>\n Chambers can be either of an anechoic chamber or hemi-anechoic design pattern. What is the main difference?<\/span><\/i><\/p>\n Anechoic and hemi-anechoic chambers are typically tailored to specific testing needs and frequency requirements, often aligned with ISO standards.\u00a0<\/span><\/p>\n The size of these chambers is primarily dictated <\/span>by the equipment under test<\/b>. Their sizes can range from extremely large ones used for instance<\/span> in the case of automotive testing, to very small chambers, employed to test more compact devices.<\/span><\/p>\n <\/p>\n As stated earlier, these chambers are instrumental to facilitate the development and testing of <\/span>any noise-generating products<\/b>.\u00a0<\/span><\/p>\n Another example of an industrial sector that has been significantly affected is the aerospace industry.\u00a0 These chambers are particularly used in the fields of research and development<\/span> to test aircraft engines, jet noise reduction technologies, aircraft interiors, and other aerospace components for noise emissions and acoustic characteristics.<\/span><\/p>\n In short, they give significant assistance in identifying unexpected noises and vibration issues that may arise during operations. For instance, many types of industrial machinery can be tested in a hemi-anechoic chamber to assess their vibration properties.<\/span><\/p>\n However, benefits are not just limited to sound isolation.<\/span><\/i><\/p>\n Anechoic and Hemi-anechoic chambers also provide <\/span>total protection against electromagnetic interference<\/b>, such as radio waves, which could disrupt the product or sensitive measuring instruments.<\/span><\/p>\n More importantly, unlike any other soundproofing chambers, which <\/span>attenuate noise levels to around 10-20 dBA<\/b>, Anechoic and Hemi-anechoic chambers can be designed to achieve even lower levels, reaching <\/span>as little<\/b> as -20 dBA<\/b> if required.<\/span><\/p>\n <\/p>\n Stopson Italiana offers a range of prefabricated Anechoic or Hemi-anechoic Chambers that are <\/span>internally treated with standard wedges<\/b>, according to the lowest operating frequency. Our products are tailored for professional testing in various fields.<\/span><\/p>\n Our case history includes the implementation of <\/span>a hemi-anechoic chamber for acoustic testing in a Home Appliances Plant, in Pordenone, Italy<\/b>. The chamber in question was provided with a modular construction for easy dismantling and built with non-combustible sound absorbing materials.<\/span><\/p>\n Stopson Italiana\u2019s anechoic chambers can also be <\/span>optionally equipped with a control room<\/b>. Such a setup provides working areas with sufficiently low sound pressure levels, limited reverberation, and ensures accurate acoustic performance.<\/span><\/p>\n Our anechoic chambers typically have <\/span>a cut-off frequency of 125Hz<\/b> and can be equipped with various features depending on their intended use. These features may include suitable interior lighting, exhaust gas extraction systems, independent ventilation and cooling systems, air-conditioned aspiration\/exhaust, easy access to tested devices, safety glass for visual inspection during testing, and long-lasting soundproofing materials.<\/span><\/p>\n\n
Designing Anechoic and Hemi-anechoic Chambers<\/b><\/h3>\n
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Main benefits of Anechoic and Hemi-anechoic Chambers<\/b><\/h3>\n
Anechoic and Hemi-anechoic Chambers by Stopson Italiana<\/b><\/h3>\n