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Handheld Arrays

The 2D measurement arrays from gfai tech are for use with their full Acoustic Camera System. The handheld devices are optimised for quick sound source localisation using either beamforming or nearfield methods. They guarantee easy handling for acoustic measurements in the far-field and near field.

GFai Acoustic Camera Handheld Array Paddle2x52 AC Pro

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As flexible mobile devices, handheld Microphone Arrays are a great addition to any Acoustic Camera system. Moreover, the integrated data recorder makes them usable as a stand-alone solution. Handheld arrays are especially suited for trouble-shooting because they enable real-time measurements in wide frequency ranges. Required time and effort for measurements are reduced since the lightweight device comes in a practical carry-case, already set up and ready to use.

Paddle2x52 AC Pro

52 double-layer channel system for low-frequency application
This portable handheld paddle features 104 double-layered microphone channels that allow for real-time acoustic near field measurements. The double-layer structure enables the measurement of acoustic pressure signals while particle velocity/acoustic intensity on the measurement plane is calculated and mapped simultaneously.

Paddle2x24 AC Pro

24 double-layer channel system for low-frequency application
This portable handheld paddle features 48 double-layered microphone channels that allow for real-time acoustic near field measurements. The double-layer structure enables the measurement of acoustic pressure signals while particle velocity/acoustic intensity on the measurement plane is calculated and mapped simultaneously.

Paddle2x52 AC Pro

Array-body dimensions	71 x 35 x 16 cm
Weight	1.6 kg

Video Camera	Baumer VLG-22C (wide-angle lens)
Resolution	1920 x 1080 (Full HD)

Microphones	Electret condenser capsule + special designed preamplifier
Frequency response	20 Hz – 15 kHz ( < 0.5 dB) 10 Hz – 20 kHz (< 3 dB)
Max. sound pressure level	130 dB at 3% THD
Noise level	27 dB(A)
Sensitivity	20 mV/Pa

Channels	104 (52 intensity probes)
Recommended measurement distance	> 0.1 m
Acoustic maps from …	23 dB – 130 dB
Recommended mapping frequencies	30 Hz – 2 kHz
Dynamic range	9 dB – 25 dB

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

Paddle2x24 AC Pro

Array-body dimensions	34 x 32 x 16 cm
Weight	1.2 kg

Video Camera	Baumer VLG-22C (wide-angle lens)
Resolution	1920 x 1080 (Full HD)

Microphones	Electret condenser capsule + special designed preamplifier
Frequency response	20 Hz – 15 kHz (< 0.5 dB) 10 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 (24 intensity probes)
Recommended measurement distance	> 0.1 m
Acoustic maps from …	23 dB – 130 dB
Recommended mapping frequencies	30 Hz – 2 kHz
Dynamic range	9 dB – 23 dB

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