Sound & Vibration Testing Solutions

Brüel & Kjær has the world’s most comprehensive range of noise and vibration test and measurement solutions for acoustic, rotating, structural and environmental testing within the civil, military & space industries.

Founded in 1943, Brüel & Kjær has now over 6 decades of providing innovative solutions for Noise & Vibration Testing.

Acoustic Stealth

Both in the skies and under the water acoustic stealth plays a vital role in military operations. Brüel & Kjær supply systems for acoustic ranging of submarines and surface ships. We have systems for noise footprint analysis, for noise source investigation; and systems for self-monitoring during operations. Brüel & Kjær design and build arrays for noise source identification.

Environmental Noise Impact

Brüel & Kjær can help responsible organisations to look for ways of reducing their noise impact on armed forces personnel and local communities. Brüel & Kjær supply systems for occupational health, helmet/cabin/cockpit noise assessment, acoustic & human vibration monitoring, noise-mapping of vehicles, and urban noise monitoring.

Environmental Testing

For any aircraft, helicopter, space vehicle or ballistic device, reliability is the number one priority. Brüel & Kjær has a wide range of vibration test systems, including shakers, controllers, transducers and high-speed data acquisition systems that can prove a product’s reliability and integrity.

Structural Dynamics

Structural dynamics testing is essential to understand and optimise the inherent dynamic properties of structures to ensure reliable and safe operation. Brüel & Kjær offers complete solutions for modal analysis, real-life operational test and test-FEA integration.

Engine & Gearbox Monitoring

Vibration analysis of rotating machinery provides valuable information on engine health, reliability and performance. Brüel & Kjær HUMS (Health Usage Monitoring Systems) transducers are permanently mounted on the gearboxes of civil & military helicopters. Brüel & Kjær has vibration measurement and analysis solutions for test-cell applications, and on-ground maintenance systems.

Complete Systems – from One Partner

Based on COTS (Commercial off The Shelf) products, we provide complete measurement and analysis systems - ranging from specialist transducers, through multichannel data acquisition, to workflow- and task-oriented application software and final documentation and reporting. Together with LDS’ comprehensive range of shakers & controllers we can furthermore offer complete shock and vibration test systems for durability and reliability testing.

The World’s largest Noise and Vibration group with Global Sales and Support

Brüel & Kjær is a global company, with headquarters in Denmark, and with more than 90 sales offices in 55 countries. With R&D engineers in Denmark, UK, USA and India, fully owned sales and support offices in 20 countries, 12 Accredited Calibration Centres - we are the only true global service organisation within sound & vibration.

Spectris PLC – The Brüel & Kjær Parent

Brüel & Kjær is a member of Spectris. Spectris is a leading supplier of precision instrumentation and controls. The company employs around 6,000 people worldwide in its 13 business units.
Spectris is listed on the London Stock Exchange (symbol SXS) and is a founder member of techMARK, the London Stock Exchanges index for technology companies.