The Acoustic Cameras

This ring array is a 32 channel measurement system designed for applications in acoustic labs. The lightweight array-body is designed as slim as possible and is made of carbon fiber. This ensures easy handling and accurate microphone positioning.

The Ring48-75 is a differential array working together with the Multi Channel Data Recorder (mcdRec). The ring on which the microphones are placed is a custom made carbon fiber construction to assure a constant microphone position over long time.

This 72 channel ring array is designed for applications in acoustic labs and the free field. The lightweight array-body is designed as slim as possible and is made of aluminium. This ensures easy handling and accurate microphone positioning. Depending on your requirements, 100 cm and 140 cm versions can also be provided.

40 channel array for 3 different arrangements for different measurement applications

The Fibonacci array represents a new array family allowing near field and far field measurements with the same hardware. Two Baumer VLG22c cameras (one with an extra wide-angle lense for near field measurements) provide optimal reference images. The application area of this array ranges from 30 Hz for holography measurements to 25 kHz for beamforming measurements.

This system is perfectly suited for trouble-shooting sound and vibration problems. The handheld device quickly and efficiently identifies noise sources using acoustic signals.

This Star array is a 48 channel measurement system designed for outdoor applications. The lightweight aluminium array-body is designed as slim as possible to ensure easy handling and accurate microphone positioning. The included high-end tripod allows set-up in almost any measurement environment imaginable. 

As required, the Evo AC Pro is comprised of 96 to 168 microphone channels and provides highest definition and acoustic dynamic for wind tunnel applications. It was especially developed for identifying aerodynamically created sounds. This microphone array offers cutting-edge technology in the field of aeroacoustics.

This spherical 48 channel microphone array is primarily designed for applications in enclosed spaces. The lightweight array-body is designed as slim as possible and is made of carbon fiber. This ensures easy handling and accurate microphone and array positioning even under real test drive conditions on the road. This array connects to the mcdRec data recorder.

This spherical 120 channel microphone array is primarily designed for applications in enclosed spaces. The omnidirectional characteristics of the array make it perfect for 3D applications, for example in room acoustics. In combination with our cutting-edge Software NoiseImage we offer unique 3D functionality.

This system is perfectly suited for trouble-shooting sound and vibration problems. The handheld device quickly and efficiently identifies noise sources using acoustic signals.

This portable handheld paddle features 104 double-layered microphone channels that allow for real-time acoustic near field measurements. The double-layer structure enables the measurement of acoustic pressure signals while particle velocity/acoustic intensity on the measurement plane is calculated and mapped simultaneously. 

This portable handheld paddle features 48 double-layered microphone channels that allow for real-time acoustic near field measurements. The double-layer structure enables the measurement of acoustic pressure signals while particle velocity/acoustic intensity on the measurement plane is calculated and mapped simultaneously. 

The Fibonacci array represents a new array family allowing near field and far field measurements with the same hardware. Two Baumer VLG22c cameras (one with an extra wide-angle lense for near field measurements) provide optimal reference images. The application area of this array ranges from 30 Hz for holography measurements to 25 kHz for beamforming measurements.

The mcdRec is a multitalent. Our DAQ with 48-168 differential microphone channels and the posssiblity to connect hundreds of different sensors is an up-to-date, state-of-the-art piece of technology. It records and relates data to the acoustic results.

This brand-new data recorder was developed by gfai tech in Berlin. It is fully integrated in our innovative Mikado handheld for efficient on-board data acquisition.

The measurement cards for mcdRec are all developed in-house and particularly suited to complete the needs of beamforming measurements. All analogue and digital measurement cards offer you high-precision signal recordings. Our team will be happy to give you advice about which card suits your needs the most. Customized adjustments and developments can also be carried out for you.

Acoustic Photo 2D and Recorder Interface

Create Acoustic Photos from a selected time or frequency interval of your recorded data and use the graphic configurator for your recorder settings.

Precalculated narrowband analysis to create Acoustic Photos from a Spectrum or Spectogram.

Calculation of a series of Acoustic Photos as an Acoustic Movie with up to 192.000 f/s. Includes video sync for external high resolution or high speed video application.

Third dimension to the Acoustic Photo by mapping the sound sources onto a common interior or exterior CAD model instead of a single 2D plane.

Nearfield applications and creating images of sound intensity and sound pressure.

 Extended analyzing methods and algorithms for imaging modules.

Order-Spectra as well as Ordergrams with order- and frequency cursors and order filtering allowing analysis of rotating equipment.

Scheduled batchrun analysis and exports as well as scheduling measurement series to be executed at a given time.

This module and the associated hardware is the state-of-the-art in aeroacoustics.

Weighting sound sources using sound quality parameters for acoustic imaging.

Visualizing the sound propagation in room acoustic measurements.

Supports connecting CAN Bus data in NoiseImage and allows analysis in combination with classic beamforming application.

Easily implement your own Matlab algorithms into NoiseImage.

Importing and exporting channel data. Using third party data acquisition while still analyzing recorded data in NoiseImage.

C++ developer interface to implement user-programmed calculation DLLs, allowing the user to introduce their own algorithms.

In addition to testing services in various application areas, either onsite or in our laboratories, we can support you with our PolyXperts throughout the entire project. Let us even do your measurements for you, or let us help you with your acoustic analysis.

We are offering to all users - from beginners to specialists - to refresh their knowledge and exchange ideas with our PolyXperts during trainings, seminars and user conferences.

Depending on their size, Ring Arrays provide 32, 48 or 72 microphone channels. This type of array is suitable for various 2D beamforming applications.

For 3D measurements, the microphone array receives signals from all directions. The beamforming results are mapped on scanned 3D point clouds or 3D CAD models of the measured object. Especially developed for interior measurements, the Sphere Arrays with 48 or 120 microphone channels are suitable for different scenarios.

Our handheld devices are optimized for quick sound source localization using either beamforming or nearfield methods. These devices guarantee an easy handling for acoustic measurements in the far field and near field. As flexible mobile devices, Handheld Microphone Arrays are a great addition to any Acoustic Camera system. Moreover, the integrated data recorder makes them usable as a stand-alone solution. Handheld arrays are especially suited for troubleshooting because they enable real-time measurements in wide frequency ranges. Required time and effort for measurements are minimized since the lightweight device comes in a practical carry-case, already set up and ready to use.

As hand-held devices, Paddle Arrays are the ultimate low frequency measurement tool. As a double-layer channel system, it was developed for near field measurements and low frequencies using the intensity method. These portable Paddle Arrays allow for real-time acoustical measurements. The measurement of acoustic pressure signals can be conducted while particle velocity/acoustic intensity on the measurement plane is calculated and mapped simultaneously.

The Fibonacci Array represents a new array family allowing near field and far field measurements with the same hardware, using the holography or beamforming method.

The handheld Mikado is a 100% autonomous system for easy and efficient trouble-shooting of sound and vibration problems.

Data acquisition involves sampling signals that measure real-world data and converting this data into digital numeric values. As easy as this may sound, it is a lot harder to create a fully integrated, high-performing, and maximum flexible platform. We are proud to present our solutions from cutting-edge engineering.

The complete software is based on a plug-in concept: Extending the basic module, every plug-in brings its own graphical interface and tools. The users can decide which functions are necessary and make NoiseImage to their very own software system.

We offer variety of programs; including testing services, system rentals, user trainings, hardware maintenance and repair. These services are intended to support and simplify our customer’s tasks, improving their access to quality data and resulting in cost effective timely solutions to their needs.