A focus on flights

摘要

GRAS Sound & Vibration UK, a specialist in high performance measurement microphones and related acoustic equipment, is increasing focus on noise testing within the aerospace and defence industries. All applications bring their own challenges but aerospace testing can be one of the harshest, pushing microphones to their limits. Measurements often need to be conducted in high speed, turbulent air-flows, where it is vital that the microphone itself does not affect the results, and where the testing equipment has to be durable under extreme conditions. Often there is only one opportunity to record data, so validation is vital.