Anechoic Chamber Manufacturers and Suppliers

Find anechoic chamber manufacturers and anechoic chamber suppliers from IQS Directory. Refine your search below by location, company type and certification to find anechoic chamber manufacturers and suppliers. Use the time-saving Request for Quote tool to submit your inquiry to all the anechoic chamber companies you select.

  • Hatfield, PA 800-314-3332

    Isotech specializes in state-of-the-art environmental test chambers. With our standard and custom test chambers we strive to offer our clients products that are specifically designed to fit their needs. Isotech offers technical specifications like copper screen enclosures, RF signals, and USC-26 and USC-44 series panels.

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  • Holland, MI 616-392-3161

    Russells Technical Products has been designing and manufacturing environmental test chambers since 1972. With over 150 years of combined management experience, our company provides its customers with quality environmental test systems and advanced manufacturing techniques. Russells offers a variety of standard and custom designed chambers to meet your exact specifications.

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  • Cincinnati, OH 877-233-9871

    We are leading environmental test chamber brand with over 78 years of experience designing environmental testing solutions. Over the years we have developed products for ease-of-use, reliability and performance designed to meet our customer’s testing needs and improve the safety and reliability of their products. We have a legacy of providing high quality solutions for temperature, humidity, altitude, thermal shock, combined environments, HALT/HASS and more; in sizes ranging from benchtop to large walk-in/drive-in chamber for full-vehicle testing. Please contact us today for more information!

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  • Grand Rapids, MI 800-368-4768

    Weiss Technik is a worldwide leader in the design and manufacturing techniques of environmental test chambers. We offer a complete line of standard and custom chambers, from bench top models to full walk-in and drive-in solutions to meet any testing requirement. Not sure what you need? Let one of our applications engineers help. Weiss Technik is ISO 9001 registered and A2LA accredited.

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  • San Jose, CA 408-945-7861

    Hastest Solutions designs, manufactures and provides solutions for all environmental testing needs. For the full range of environmental test chambers, including HAST, temp/humidity, salt fog, solar radiation, high temp ovens, autoclave, temperature cycling, sand and dust testing, rain, triple zone chambers, including custom sized chambers, please contact us.

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Anechoic Chamber Industry Information

Anechoic Chambers

Anechoic chambers, also called dead rooms or field-free rooms, are rooms designed to absorb acoustic echoes, or sound, in order to minimize internal and external sound reflections as well as providing a shielded environment for radio frequency, or RF, and microwaves. Offering a sound energy absorption level of 99% to 100%, or a reflected sound pressure level of 10% or less, anechoic chambers simulate echo-free conditions in which the decibel levels given off and affected by industrial products can be measured.

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Applications of Anechoic Chambers

Anechoic chambers are a type of soundproofing structure mainly used in order to create quiet environments for worker safety, audio mixing and research as well as testing the electromagnetic interference, or EMI, of products such as computers, microphones, lightning, fluorescent lighting, cell phones, loudspeakers, and electrical components. They help eradicate noise pollution, or echoes which distort and dilute the main audio, from the work environment.

Industries that benefit from anechoic chamber testing include:

  • Electronics
  • Aerospace
  • Automotive
  • Medical
  • Telecommunications
  • Music
  • Industrial
  • Military
  • Audiology

Anechoic Chamber Design and Customization

Ranging from small compartments to chambers as large as aircraft hangers, an anechoic chamber’s size depends upon the product being tested as well as the frequency range of the microwave or radio signals used. Both types of anechoic chambers (full anechoic and hemi anechoic) are constructed using cement or brick walls to keep external sound from entering. They are typically asymmetrical in design to reduce stationary waves. The higher the ratio of sound barrier surface area to open space, the greater the sound absorption; for this reason, anechoic chamber manufacturers line surfaces with corrugated foam wedges, which absorb far more sound than flat foam or other acoustic panels. The corrugated foam wedges can be injected with materials such as carbon or ferrite in order to provide increasing resistive loss. All materials used must have good non-conductive properties in addition to a relative permittivity, or amount of energy a material absorbs when subject to an electric field, that is near unity to minimize sound reflection at the interface. The materials are commonly shaped as inward-facing pyramids, which reduce the amount of sound reflected back into the interior of the chamber. Product testing rooms and acoustical research centers requiring absolutely minimal noise pollution build anechoic chambers lined with a combination of acoustic foam panels, acoustic drywall, and acoustical ceilings.

Types of Anechoic Chambers

There are two types of anechoic chambers: full anechoic chambers and hemi anechoic chambers. Full anechoic chambers are the most common type, in which every surface is covered with sound absorbing material. Hemi anechoic chambers, on the other hand, have sound absorbent materials on the walls and ceiling only in order to test heavy-duty equipment requiring solid floors.

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