Arrays for 3D measurements
The 3D measurement arrays from gfai tech are for use with their full Acoustic Camera System.
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For more information on Arrays for 3D measurements or to request a quote, contact our team now:
Request a QuoteContact usFor 3D measurements, the microphone array receives signals from all directions. Therefore, these arrays are specially optimiSed for interior measurements. The beamforming results are mapped on scanned 3D point clouds or 3D CAD models of the measured object. Sphere Arrays with 48 or 120 microphone channels are suitable for different scenarios.
Sphere48 AC Pro
48 channel system for various interior measurement scenarios
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 fibre. This ensures easy handling and accurate microphone and array positioning even under real test drive conditions on the road.
Sphere120 AC Pro
120 channel system for various interior measurement scenarios
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.
Sphere48 AC Pro
| Array-body diameter | 35 cm |
| Weight | 0.9 kg |
| Video camera | Intel® RealSense™ Depth Camera D435 |
| Resolution | 1920 x 1080 (Full HD) |
| Microphones | Electret condenser capsule + special designed preamplifier |
| Frequency response | 100 Hz – 15 kHz ( < 0.5 dB) 20 Hz – 20 kHz (< 3 dB) |
| Max. sound pressure level | 130 dB at 3% THD |
| Noise level | 27 dB(A) |
| Sensitivity | 20 mV/Pa |
| Channels | 48 |
| Recommended measurement distance | > 0.3 m |
| Acoustic maps from … | 12 dB – 130 dB |
| Backward attenuation | > -15 dB |
| Recommended mapping frequencies | 291 Hz – 20 kHz |
| Dynamic range (Distance to the source: 1 m; calculation points: 90,000) | 9 dB – 14 dB, up to 50 dB with Advanced Algorithms |
| Ingress protection code | IP20 |
| Cable length to a data recorder | Up to 20 m (on request: 50 m) |
| Operating environment | 0°C – 35°C, up to 80% RH |
Sphere120 AC Pro
| Array-body diameter | 60 cm |
| Weight | 2.1 kg |
| Video Camera | Intel® RealSense™ Depth Camera D435 |
| Resolution | 1920 x 1080 (Full HD) |
| Microphones | Electret condenser capsule + special designed preamplifier |
| Frequency response | 100 Hz – 15 kHz ( < 0.5 dB) 20 Hz – 20 kHz (< 3 dB) |
| Max. sound pressure level | 130 dB at 3% THD |
| Noise level | 27 dB(A) |
| Sensitivity | 20 mV/Pa |
| Channels | 120 |
| Recommended measurement distance | > 0.5 m |
| Acoustic maps from … | 8 dB – 130 dB |
| Backward attenuation | > -21 dB |
| Recommended mapping frequencies | 187 Hz – 10 kHz |
| Dynamic range (Distance to the source: 1 m; calculation points: 90,000) | 15 dB – 18 dB, up to 50 dB with Advanced Algorithms |
| Ingress protection code | IP20 |
| Cable length to a data recorder | Up to 20 m (on request: 50 m) |
| Operating environment | 0°C – 35°C, up to 80% RH |
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