Brüel & Kjær

A world-leading provider of advanced noise and vibration testing and measurement solutions for operational, production and R&D applications.

Brüel & Kjær specialises in systems that ensure structural reliability, performance and optimal design, and that manage the acoustics of military vessels for surface and underwater use.

Complete Systems from One Partner

Covering the entire measurement chain for comprehensive noise and vibration testing, Brüel & Kjær offers complete systems from one partner.
• Transducers
• Acquisition hardware
• Analysis software
• Final documentation and reporting
• Vibration shaker systems

Acoustic StealthAcoustic Stealth

Systems to assess acoustic stealth of vehicles such as submarines, surface ships and aerial vehicles

• Noise source investigation during design and build
• Self-monitoring during operation
• Troubleshooting
• Noise source identification
• 3D noise mapping
• Underwater acoustic ranging – static and dynamic
• Hull Vibration Monitoring Equipment

Passive detection

• Intruder detection systems
• Deepwater hydrophones
• Applied beamforming

Structural Dynamics – Analysing Structures

Characterising and optimising the performance of structures through structural dynamics analysis.

• Controlled excitation testing
• Classical and Operational Modal Analysis
• Operational monitoring, testing and troubleshooting
• Virtual model validation
• Operational Deflection Shapes

DDurability testing systemsurability Testing Systems

Proving reliability, integrity and durability for machinery, vehicles, ballistic devices and more – with complete durability testing systems.

• Accelerated lifetime vibration testing
• Fatigue testing
• Climatic simulation
• Package testing
• Product certification

Environmental Noise Impact Testing and Monitoring

Testing and reducing environmental noise impact on armed forces personnel and local communities.

• Ramp noiseEnvironmental noise impact testing and monitoring
• Occupational health
• Helmet/cabin/cockpit noise assessment
• Human acoustic and vibration monitoring
• Machinery/industrial/construction noise monitoring
• Noise mapping and prediction
• Turnkey standard conformance test solutions

Engine and Gearbox Monitoring

Stringent engine and gearbox monitoring through vibration analysis of machineryEngine and gearbox monitoring

• Test-cell applications and on-ground checks
• Balancing
• Vibration diagnostics using real-time analysis
• HUMS transducers

Established Experience

Brüel & Kjær has over six decades’ experience of providing innovative, complete solutions for noise and vibration testing.

• More than 90 sales offices in 55 countries
• 12 accredited calibration centres
• R&D engineers in Denmark, UK, USA and India

Brüel & Kjær has the largest global service organisation within sound and vibration


Categories: Noise and Vibration Testing
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