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Bionic - Model L-112 -Microphone Array Acoustic Camera
The Bionic L-112 microphone array has a diameter of 170 cm and consists of 112 microphones. It is engineered for use from 150 Hz in Farfield. The optimized microphone distribution guarantees a perfect sound source localization and a high dynamic range. The seven detachable microphone arms (setup about 1 minute) make the system very mobile with a small package size. The data acquisition hardware is integrated in the acoustic camera so there is no need to use external measuring equipement. Using the handle on the acoustic camera makes the system perfect for mobile use. Typical applications are wind power plants, gear, industrial facilities and environmental measurement.
- size of the acoustic camera: 1700 mm
- specifications of the acoustic camera: <33 dB to 120 dB with up to 40 dB dynamic
- number of microphones of the acoustic camera: 112 MEMS-microphones, 24 bit resolution, Sample rate 48 kHz, frequency range 10 Hz - 24 kHz
- recommend frequency range of the acoustic camera: from 150 Hz with beamforming-methods; below with decreased resolution
- material of the acoustic camera: fibre-reinforced polymer
- weight of the acoustic camera: 3,7 kg
The data acquistion system is integrated into the hub which is used for mouting the microphone-arms. This offers the advantage that no cabels are in the way. The measurement system is a National Instruments embedded-controller with real-time operating system and FPGA.
- Number of channels: 112
- Samplerate per channel: 48 kS/s
- Resolution: 24 bit
- Synchronous sampling: Yes
- Interface to PC: Ethernet
- Fanless: Yes
- Additional inputs: Trigger, Tacho (RPM)
- Powersupply: 12 V
- Consumption: < 14 W
- Dimension: 18 cm x 18 cm x 10 cm
- Weight: 2,2 kg
The Noise Inspector software is the standard solution for visualizing sound sources. The application-oriented software guides you from data acquistion to analysis to saving and reporting of acoustic data.
- Online- and offline analysis
- Acoustic-photo und acoustic-video
- A lot of HD algorithms: Beamforming, EVOB, CLEAN SC, MUSIC, Capon, DAMAS, Real 3D Beamforming,...
- Frequency analysis and time-frequency analysis (sonogram)
- Acoustic weighting (A, B, C) or linear presentation
- Open interface to Matlab for own algorithms
- Easy export of terce/octave, measurement, acoustic-photo and acoustic-video
- Playback of local sound
Every acoustic camera is expandable through additional arrays for opening up new fields of application.
- Expansion with Bionic XS-56 arms (application from 800 Hz) → Go to Bionic XS-56
- Expansion with Bionic S-112 arms (application beamforming from 400 Hz; holography from <40 Hz) → Go to Bionic S-112
- Expansion with Bionic M-112 arms (application beamforming from 250 Hz; holography from <40 Hz) → Go to Bionic M-112
- 3D Beamfoming System through e.g. an additional Bionic L-112 array and the 3D Beamforming algorithm → Go to 3D Array
- Expansion with an Intensity Array (application from 40 Hz) → Go to Intensity Array
- Expansion with an Acousic Compass (3D intensity probe, application from 40 Hz) → Go to Acoustic Compass
The following accessories are available for this system:
- Calibrator adapter
- Battery
- Notebook or Tablet
- Flight case
- Windshields
The Breakout Box extends the data acquisition system for connecting ICP/IEPE and analoge sensors the Frontend.
- Number of channels: 8 to 40
- Sensor interface: ICP, IEPE and analog sensors single switchable
- Input voltage: ± 5 V
- Samplerate per channel: 48 kS/s
- Resolution: 24 bit
- Synchronous sampling: Yes
- Interface: Connection to I²S Frontend
- Fanless: Yes
- Powersupply: 12 V
- Consumption: < 1 W
- Dimension: 14 cm x 7,5 cm x 5 cm
- Weight: 0,5 kg
