State-of-the-art solution for sound mapping in the wind tunnel

Customised wind tunnel solutions for your individual application

Aeroacoustic testing is gaining more and more importance, especially in aerospace and automotive industry. Identifying aerodynamically created sounds and their reduction are the main focus. Besides acoustic optimization, another goal of aeroacoustics is creating a comfortable vibration climate in vehicles.

We offer all-round service for investigating and measuring the aeroacoustics of objects in wind tunnels. Many German and international companies of the automotive and aerospace industry draw on our experience in acoustics and aeroacoustics.

Individual developments for arrays with at least 120 microphone channels

Optimized workflow for wind tunnel solutions

Our software solution NoiseImage provides a wide range of advanced analysis functions such as the Clean-SC algorithm. The wind tunnel module allows application-specific settings like applying a shear-layer correction or taking into consideration the wind speed in the wind tunnel. Real-time functionality and optimized measurement cycles guarantee quick results in an environment where time is of utmost importance.

On the hardware side different microphone arrays can be optimized for individual wind tunnel applications. Arrays of 120 microphones and up are advisable and our highly-skilled team is able to customize arrays per the user's requirements taking into consideration object size, desired resolution, price, and many more. Our unique array simulator allows comparing different array geometries (size, channel count, microphone position) quickly and easily so we can ensure the final design ideally fits the user's needs.

Additionally, automatic 3D acquisition of the measurement object (e.g. for frequently changing clay objects) can be implemented. This will ensure an even higher mapping accuracy on a true to scale 3D model of the object under investigation. This system can be installed in the wind tunnel itself or a preparation room and a system for auto-fitting of the actual object in the wind tunnel and the 3D model is available as well.

As the whole system is developed in-house, software and hardware can be individually adjusted for customer requirements. The state-of-the-art technology proved itself in many applications and is continuously improved by our development department in cooperation with international leading aeroacousticians and the valuable feedback from our customers.