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Precision Performance: the Pursuit of Perfect Measurement
Technology Category
- Analytics & Modeling - Predictive Analytics
- Analytics & Modeling - Digital Twin / Simulation
Applicable Industries
- Automotive
- Aerospace
- Consumer Goods
Applicable Functions
- Product Research & Development
- Quality Assurance
Use Cases
- Predictive Maintenance
- Machine Condition Monitoring
Services
- System Integration
- Software Design & Engineering Services
- Testing & Certification
The Challenge
The challenge for Brüel & Kjær is to design industrial and measurement-grade microphones and transducers with a known and consistent error range, even over extended periods. The company must meet diverse industry sound and vibration challenges, from traffic and airport noise to car engine vibration, wind turbine noise, and production quality control. This requires designing microphones and accelerometers that adhere to various measurement standards. The goal is to achieve high precision and accuracy in their devices, which is critical for their customers, including major companies like Airbus, Boeing, Ferrari, Bosch, and NASA.
About The Customer
Brüel & Kjær A/S is a leading company in the field of sound and vibration measurement and analysis, with over 40 years of experience. Their customer base includes prominent names such as Airbus, Boeing, Ferrari, Bosch, Honeywell, Caterpillar, Ford, Toyota, Volvo, Rolls-Royce, Lockheed Martin, and NASA. The company specializes in developing and producing condenser microphones and vibration transducers that cover a wide range of frequencies and sound levels. Brüel & Kjær's products are used in various industries to address sound and vibration challenges, ensuring high precision and accuracy in measurements.
The Solution
Brüel & Kjær employs simulation as a core part of their R&D process to design and test their microphones and transducers. For microphones, they use multiphysics models to analyze the movement of the diaphragm, electromechanical interactions, resonance frequency, and thermal and viscous acoustic losses. This detailed modeling helps predict interactions between the backplate and diaphragm, influencing the microphone's directional characteristics. Simulations also allow them to test different vent configurations for low-frequency sounds, enabling the exploration of new designs and device limits. For vibration transducers, simulation helps design devices that avoid resonance frequencies within the typical range of 10 to 1000 Hz. Mechanical filters are used to cut away undesired signals caused by transducer resonance. This approach allows Brüel & Kjær to quickly and efficiently test new design solutions for various operating scenarios, bringing them closer to achieving high precision and accuracy in their products.
Operational Impact
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