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Got a question?
If you have a question, feel free to contact us:
GRAS Sound & Vibration
Headquarter | gras@grasacoustics.com
UK | sales-uk@grasacoustics.com
USA | sales-usa@grasacoustics.com
China | cnsales@grasacoustics.com
South Korea | sales-kr@grasacoustics.com
India | sales-in@grasacoustics.com
GRAS worldwide
Impulsive Noise Measurement
Exposure to impulsive noise such as explosions or firearms can occur either as a sudden noise or under controlled conditions – and may cause permanent hearing loss even after a single or a few unprotected exposures. Therefore it is essential that your products can live up to military standards - and that you are careful when selecting a microphone for extreme impulsive noise measurements.
With the GRAS range of microphones you are guaranteed to have equipment suitable for any extremes - and everything in between.
Cases & Brochures
Measuring recreational noise from firearms
FAQ for Impulsive Noise Measurement
What is impulsive noise in aerospace?
Impulsive noise is a short-duration, high-intensity acoustic event characterized by rapid rises and quick decays in sound pressure, unlike continuous noise. It includes blasts, impacts, and explosions that occur in aerospace environments.
Why does impulsive noise matter in aerospace testing?
Impulsive noise matters because it can cause structural stress, affect aircraft systems, and pose hearing risks, requiring precise measurement and control to ensure safety and compliance.
What are common sources of impulsive noise in aerospace?
Common aerospace sources include rocket launches, engine test explosions, blast events, blade vortex interactions on rotorcraft, and shock waves from high-speed flight.
How is impulsive noise measured accurately?
Accurate impulsive noise measurement uses high-dynamic-range microphones and fast sampling systems to capture brief, intense pressure spikes that standard sound meters cannot reliably record.



