Anechoic Test Facilities

With increasing noise legislation, manufacturers are constantly aiming to develop quieter engines, motors and domestic appliances. Against this background of new noise legislation and the need for advanced product performance, manufacturers are benefiting from IAC’s technology by producing quieter, more efficient user-friendly goods.

IAC anechoic test facilities provide an acoustically controlled environment where there is no noise interference from external or internal sources, not even from ventilation systems. IAC also design and manufacture environmental, ‘shake and rattle’ and hot engine test facilities.

At IAC, we offer our clients a comprehensive one-stop shop expertise in acoustic design; civil, structural, mechanical and electrical engineering. We provide a complete turnkey service from feasibility study through to construction and commissioning and offer every aspect of project management. IAC also undertake chamber refurbishment projects, often for existing customers, whose facilities require upgrading.

IAC design and build test facilities in accordance with various international technical specifications and standards. Our anechoic test facilities comply with the most stringent environmental requirements as regards chamber construction materials and aesthetic impact on the surroundings. We design and manufacture chamber components at our largest manufacturing base, at the Group’s European HQ in Winchester, UK. We test and check all component parts prior to dispatch and guarantee the acoustic performance of all our test rooms.

IAC is a leading global specialist in the design and construction of anechoic, semi-anechoic and hemi-anechoic test rooms and anechoic chambers. IAC has supplied many of Europe’s test houses with test environments including the Institute of Sound and Vibration Research (ISVR) in Southampton, UK; Applus+ Idiada in Spain; the University of Salford; and Ricardo in Shoreham, UK.

For more information, see the download section on this page or contact our Industrial Team to discuss your requirements.

Typical Applications

IAC design and manufacture anechoic test facilities for a wide range of applications that include:

Automotive engine and component manufacturing
Telecoms
White goods testing
Neonatal cot facilities
Hi-Fi equipment manufacturing and testing
Educational establishments
Research and development facilities
Quality control and routine testing

Download our information sheet to find out more about automotive test facilities from IAC or visit our Gallery.

Design and Construction of Anechoic Test Facilities

IAC Anechoic Chambers range in size from Mini-Anechoic Chambers measuring as little as one metre in diameter, to what we believe is one of the world’s largest, a hemi-anechoic chamber with a diameter exceeding 20 metres.

IAC handle all aspects of design and construction that includes:

Air flow
Building management systems
Electrical cabling and communications
Fire systems
Lighting
Site design and laying foundations
Site landscaping
Site preparation
Small power exhaust systems

We can also supply equipment such as Chassis Dynometers for Anechoic facilities for automotive engine Research and Development.

Download our information brochure to find out more about Anechoic Rooms and Reverberation Rooms from IAC or contact one of our Industrial Team.

Metadyne Anechoic Protection

Metadyne Anechoic Wedges from IAC provide acoustical performance to the highest standard. IAC metal-faced Metadyne wedges are fully encapsulated in perforated metallic casings. This patented technology is unrivalled in terms of acoustic performance, longevity, and easy maintenance.

Features and benefits of IAC Metadyne wedges include:

Wedges are easy to clean
High fire-resistance (in case of oil spills or use of inflammable wedge materials)
Long lifespan
Proven, guaranteed acoustic performance, with very low cut-off frequencies
Resistance to erosion and circulation of fibrous materials
Suitable for new/refurbished chambers
Wedges are Interchangeable and adjustable
Wedges can be powder coated in corporate colours for added impact

The rugged wedge construction and its long life offer advantages to laboratories working with heavy equipment and/or flammable materials.

Components of IAC anechoic test facilities

Components that form an IAC anechoic test facility include:

Acoustic doors: single-leaf doors, double-leaf door sets or sliding acoustic doors, bucket doors
Anechoic wedges: foam, fibreglass, or metal Metadyne
Ventilation systems
Acoustic silencers for air flow systems
Ventilation and exhaust silencers
Fans and ducting
Air handling units
Acoustic louvres: and weather louvres for plant areas

Acoustic Refurbishment of Test Chambers

IAC have unparalleled experience and expertise in the supply of the full range of anechoic, semi-anechoic and hemi-anechoic test facilities. To-date we have completed over 450 projects. IAC also undertake chamber refurbishment projects, often for existing customers, whose facilities require upgrading.

Refurbishment will improve the acoustic performance of the test chamber and provide a more pleasant working environment for staff. Using state-of-the-art robust materials and latest technology, we can provide your test facility with a much-needed upgrade that will comply with the current standards. Download our fact sheet for more information about refurbishment options from IAC or contact one of our Industrial Team.

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Anechoic Chamber Product Range

In addition to anechoic test facilities, IAC’s range of anechoic chambers includes:

Reverberation chambers reflect rather than absorb incident sound energy. The purpose of a reverberation room is to determine the sound power output of noise sources, transmission loss of partitions, insertion loss of silencers, response characteristics of microphones and random incidence absorption coefficients of materials. They are also used for high-intensity noise-level fatigue testing of aircraft, space vehicles and other equipment.
A reverberation room provides sound isolation against extraneous noises and an environment that can be temperature, pressure and humidity controlled.
Listening rooms provide a quiet environment to assess the quality of a wide range of live and recorded vehicle sounds, relayed through loud speakers or via headphones.
Air bag testing facilities eliminate the risk of hearing damage to persons nearby. Air bag testing facilities contain very loud noise levels, such as 140dB(A) which is generated when an airbag is fired. In addition, audio and visual observations can be recorded on film for later analysis.
Mini Anechoic Chambers provide a quiet environment, free from excessive variations in temperature, pressure and humidity. IAC Microdyne Mini Anechoic Chambers provide a compact, low-cost anechoic test environment in which manufacturers of small devices and components can measure, accurately, the noise emissions of their products.