Wind Turbine Sound Power Determination according to IEC61400–11

International standard IEC 61400-11 demands consistency and accuracy in the measurement of wind turbine noise, using quality equipment with calibration that is traceable to national institutes.

Brüel & Kjær’s PULSE Wind Turbine Sound Power Determination According to IEC 61400–11 Type 7914 solution is an easy-to-use, complete test system that minimises the headaches of following the protocols required by the standard. The standard’s exacting methodology is simplified thanks to an intuitive user interface that covers the measurement, analysis and reporting of complex acoustic emissions.

With this solution, wind turbine manufacturers can determine sound power and tonality, wind turbine purchasers can check the expected specified noise levels of new or refurbished units, and planners and consultants can calibrate or validate their calculated environmental noise maps for single wind turbines or extensive wind farms. With Brüel & Kjær’s unrivalled backup service including accredited calibration, you can trace the validity of your measurements to the appropriate national standards body.

The Type 7914 incorporates the best of Brüel & Kjær’s wide product range, from measurement microphones to the PULSE analysis platform, and includes software to manage all of the complex requirements. Brüel & Kjær’s trademark inter-connectivity also allows this system to be reconfigured to cover an infinite range of measurement scenarios.

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