Measurement Microphones for Aeroacoustics A E R OAC O U ST I C TO O L B OX Ultra-Thin Precision Microphones Surface Microphones Flush-mount Microphones

The GRAS UTP microphones provide the ability to quantify and understand boundary layer and turbulence noise. They combine the advantages of precision measurement microphone with a small form factor. All LX versions have TEDS. The height of the single sensors is 1 mm, the line arrays are 1.35 mm. > High-precision measurement microphones > Ideal for low-boundary layer testing and confined spaces > Fast mounting and remounting with good repeatability/consistent geometry > Easy in-situ verification > Wide linear frequency range and dynamic range M" UTP, High Pressure Frequency range GRAS 48LA Dynamic...

This line of acoustic sensors combines the high precision and reliability of GRAS measurement microphones with the need for fitting sensors into confined spaces and narrow structures. With an installation height of less than 10 mm, they can be integrated into virtually any design without sacrificing aerodynamic properties. > High-precision measurement microphones > Very low installation height > Integrated preamplifier with plug and measure functionality (TEDS) > Wide linear frequency range and dynamic range ^" Flush-mount GRAS 47AX Frequency range Dynamic range Sensitivity Venting M" Flush-mount...

The GRAS nose cones have a better in-flow noise rejection compared to other designs. The blunt tip design is ideal at relatively low wind speeds and in places where it is of interest to make near-field measurements in the flow. > High induced flow-noise reduction > Low acoustic attenuation > Lightweight design to reduce vibrations and wake noise > Single or array mounting > Standard microphone accommodation RA0020 for /4” standard microphone sets RA0022 for K” standard microphone sets RA0173 for 34” standard microphone sets ACCESSORIES FOR UTP MICROPHONES MOUNTING RA4810 Hard Fairing for 48LA/48LX-1...