El array de micrófonos Fibonacci de Acoustic Camera representa una nueva familia de arrays que permiten trabajar en campo cercano y lejano con el mismo hardware. Dos cámaras Baumer VLG22c (Una de ellas con una lente gran angular para las mediciones de campo cercano) proporcionan imágenes de referencia óptimas. El área de aplicación de este array varía desde 30 Hz para mediciones de holografía a 25 kHz para mediciones de beamforming.
Especificaciones:
| Array-body diameter | 0,95 m |
| Weight |
10 kg
|
| Number of Microphones | 120 |
| SymBus microphone connectors via differential conditioning | |
| Advanced disturbance tolerant | ¼” symmetrically buffered electret pressure receivers (based on Sennheiser microphone capsule 4211) |
|
Frequency Response of Microphones Dynamic Range of Microphones |
20 Hz – 20 kHz (± 3 dB) 28 – 130 dB (A-weighted) |
|
Acoustic Maps Max. equivalent sound level |
23 – 130 dB 121 dB(A) |
| Video Camera | Holography: Baumer VLG22c Ethernet Camera extra wide-angle lense
Beamforming: Baumer VLG22c Ethernet Camera
|
|
Holography SONAH |
Recommended measurement distance: 10 – 20 cm Recommended mapping frequencies: 40 Hz – 2 kHz |
| Holography HELS | Recommended measurement distance: 0 – 10 cm
Recommended mapping frequencies: 30 Hz – 400 Hz
|
| Beamforming | Recommended measurement distance: 80 cm – 10 m
Recommended mapping frequencies: 300 Hz – 25 kHz
|
| Single map dynamic | 13 – 17 dB (CBF) using HDR 20 – 40 dB |
| Symmetrical output resistance | 100 Ω |
| Backward attenuation of Array | > -20 dB |
| Ingress protection code | IP20 |
| Operating Environment | 0°– 45°C, up to 80% r.h. |
| Connecting array cable length to data recorder | 1 – 20 m |