02-577-0282
#502 UnoBldg., 219 Dogok-ro, Gangnam-gu, Seoul 06231, Korea
 
Wind turbine
Acoustic Camera – wind turbine microphone array

어쿠스틱 카메라-풍력 터빈 마이크 어레이

특수 풍력 터빈 마이크 어레이가 장착 된 어쿠스틱 카메라는 매우 낮은 주파수의 음원에 대해 직경 500cm의 큰 직경에 적합합니다. 40 개의 마이크는 소리를 가시화하고 정확히 50Hz에서 노이즈를 국소화합니다. 최적화 된 마이크 분배는 완벽한 음원 위치와 높은 다이나믹 레인지를 보장합니다. 시스템의 직경이 500cm 인 경우에도 차량에서 운송 할 수 있습니다. 설정 시간은 약 30 분입니다. 일반적인 응용 분야는 풍력 발전소, 산업 시설 및 환경 측정입니다.
Technical Data

 

size of the acoustic camera5000 mm
Spezifikationen der akustischen Kamera<33 dB to 120 dB with up to 40 dB dynamic
number of microphones of the acoustic camera40 MEMS-microphones, 24 bit resolution,
Samplerate 48 kHz, frequencyrange 10 Hz – 24 kHz
recommend frequency range of the acoustic camerafrom 50 Hz with beamforming-methods; below with decreased resolution°
material of the acoustic cameraaluminium
weight of the acoustic camera75 kg
 

Data Acquisition

 

The data acquistion system is a National Instruments embedded-controller with real-time operating system and FPGA.

 
Number of channels40
Samplerate per channel48 kS/s
Resolution24 bit
Synchronous samplingYes
Interface to PCEthernet
FanlessYes
Additional inputsTrigger, Tacho (RPM)
Powersupply12 V
Consumption< 7 W
Dimension23 cm x 18,5 cm x 5,8 cm
Weight2 kg
Software

 

  • 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
Accessories

The following accessories are available for this system:

Zubehör Akustische Kamera Kalibratoradapter
Calibrator adapter
Zubehör Akustische Kamera Akku
Battery
Zubehör Akustische Kamera Kalibrator
Notebook or Tablet
Zubehör Akustische Kamera Pelicase
Flight case
Breakout Box extends

 

The Breakout Box extends the data acquisition system for connecting ICP/IEPE and analoge sensors the Frontend.

 
Number of channels8 to 40
Sensor interfaceICP, IEPE and analog sensors single switchable
Input voltage± 5 V
Samplerate per channel48 kS/s
Resolution24 bit
Synchronous samplingYes
InterfaceConnection to I²S Frontend
FanlessYes
Powersupply12 V
Consumption< 1 W
Dimension14 cm x 7,5 cm x 5 cm
Weight0,5 kg