Twinsburg, Ohio -– GRAS Sound & Vibration, a manufacturer of high-quality measurement microphones and related acoustic sensors, is launching the 147AX CCP rugged pressure microphone for engine noise testing and the 147EB CCP X-Rugged microphone for wheelhouse brake noise testing. Together with the versatile 146AE CCP free-field microphone, launched in late 2017 specifically for use in the automotive industry, GRAS now has the strongest and most comprehensive range of microphones for use in NVH test applications.
The 147AX CCP a surface microphone optimized for cold and hot engine noise testing and ensures more efficient testing and repeatable results. Its small and rugged design allows for microphone mounting in places that were previously not possible. The magnetic mounting disc of the 147AX enables easy positioning on any metal surface and will ensure the exact same microphone position for future measurements.
The 147EB CCP X-Rugged microphone set is an extremely robust microphone specially designed and optimized for wheelhouse brake noise testing. The microphone has a three-layer protection of the diaphragm and has endured more than 10,000 miles of on-road testing on all surfaces and in all weather conditions. This rugged microphone will withstand prolonged exposure to extreme temperature variations, water, salt, dust, snow, and impacts from gravel.
Together with the robust 146AE CCP free-field microphone set, these new products make up a full portfolio of microphones covering all application areas within automotive NVH testing.