Overview
The Mobile Array Evo is designed for aeroacoustic applications, particularly wind tunnel testing. Its foldable construction enhances portability and storage, with a back frame that doubles as a storage area for the data recorder, ensuring high mobility and compactness. Ground anchor points contribute to repeatability and accuracy.

Specifications
- Available with 96, 120, 144, or 168 channels.
- Microphone positions are optimized for maximum acoustic dynamic range and sound localization accuracy.
- Central optical camera positioning for optimal spatial resolution.

Applications
- Wind tunnel measurements
- Pass-by measurements of vehicles
- Leakage detection

Benefits
- Easy handling and storage due to foldable design
- Simple setup
- Comprehensive mobile measurement system for various vehicle positions

Features
- Video camera: Baumer VCXG-25C with Full HD resolution (1920 x 1080)

Microphone Data
- Electret condenser capsule with special preamplifier
- Frequency response ranges:
- 20 kHz – 60 kHz (< 15 dB)
- 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

Size and Weight
- Dimensions: 2.4 x 2.5 m (2.4 x 1.9 m for transport)
- Weight: 70 – 90 kg, depending on configuration

Operating Conditions
- Ingress protection code: IP20
- Cable length to data recorder: up to 20 m (50 m on request)
- Operating environment: 0 °C – 45 °C, up to 80% RH

Array Data
- Channels: 96/120/144/168
- Acoustic mapping range varies by channel configuration, with a maximum of 130 dB.
- Recommended mapping frequencies: 84 Hz – 10 kHz for 144 channels
- Dynamic range: 16 dB – 24 dB, up to 50 dB with advanced algorithms

Technical Data
- Calculation of the lowest frequency at 180° opening angle for 144 channels is 84 Hz.

Contact Information
gfai tech GmbH, Volmerstraße 3, 12489 Berlin, Germany
Website: www.gfaitech.com
Email: [email protected]
Phone: +49 (0)30 81 45 63-750
© gfai tech GmbH 01/2023