This new system is perfectly suited for troubleshooting sound and vibration problems. The mobile, wireless device enables very flexible measuring positions and angles – allowing the quick and efficient identification of noise sources using acoustic signals.
From acoustic data acquisition to data analysis – this innovative handheld noise camera offers all components for acoustic measurements, data acquisition and data analysis. Thus, sound sources can be localized and analyzed on the spot.
The integrated data recorder was developed for efficient on board data acquisition. 96 digital microphone channels are processed with up to 48 kHz. 4 isolated differential digital inputs allow a record of additional sensors.
Use sound analysis software NoiseImage Mobile in the post-processing to correlate the additional information with the acoustic signals.
The exchangeable Li-ion battery and Surface Pro tablet make it a completely autonomous device.
The compact soundcam Mikado includes all components needed for quick and efficient acoustic measurements and analyses. Data recording and basic analyses both frequency-domain and time-domain based are possible directly with the device. Features such as the touchscreen and manual trigger button ensure fast and easy operation. Mikado can also be easily connected to your workstation for more in-depth analysis with the sound analysis software NoiseImage Pro.
Easy Display of the Measurement Results
Mikado is equipped with an Intel® RealSense™ depth camera. During the acoustic measurement the depth information is automatically recorded. The innovative module “DynaBeam” generates a 3D-modell from the depth information and maps the acoustic information onto it. Sound sources are directly shown on the surface of the model making an interpretation of the information easy for everyone. Even the main beam direction of the sound sources can be displayed.
Advantage of Soundcam Mikado
All-in-one Acoustic Camera
100 % autonomous due to rechargeable Bosch battery (available worldwide)
Completly flexible during measurement
Use as handheld or mounted on a tripod
3D-model creation with “DynaBeam”
For beginners and experts
Technical Data
Array body dimensions
45 x 35 x 15 cm
Weight
1.7 kg (3.4 kg incl. battery and Microsoft® Surface)
> 0.3 m (beamforming)
< 0.15 m (acoustic holography)
Acoustic mapping range
9 dB – 120 dB
Recommended mapping frequencies
514 Hz – 24 kHz (beamforming)
30 Hz – 2 kHz with near field (acoustic holography)
Dynamic range
(Distance to the source: 1 m;
calculation points: 90.000)
15 dB – 27 dB, up to 50 dB with advanced algorithms
Ingress protection code
IP20
Operating environment
0 °C – 35 °C, up to 80 % RH (handheld operation)
-10 °C – 45 °C, up to 80 % RH (desktop operation)
System Details
Microphone Array
Randomized and algorithmically optimized distribution of microphone positions ensure high dynamics. Therefore, 96 digital MEMS microphones are distributed over a 35 cm diameter surface.
Data Acquisition
On-board data acquisition is provided via the brand new DMC402L data recorder, developed by gfai tech in Berlin.
Sound Analysis
Data can be analyzed in real-time, right on the spot: analysis software NoiseImage Mobile running on a Microsoft Surface Pro tablet allows efficient data recording and evaluation. For further analysis, all data can be transferred onto a workstation running NoiseImage 4.
Power
In battery powered mode this Acoustic Camera Mikado will run for up to three hours on one battery.
NoiseImage Mobile
The Mikado sound camera comes with special software for mobile use – NoiseImage Mobile.
With three preconfigured layouts, you can get started immediately and view your measurement data live or analyze it in the post-processing.
Edit the data either in the time domain or in the frequency domain.
In the time domain, you can set and evaluate the desired time domain directly in the channel data. In the frequency domain you can choose between a spectrum and a spectrogram.
To increase the dynamics and better source separation, 2 algorithms are available:
HDR (High Dynamic Range Algorithm)
CleanSC
Module Features
Easy and intuitive Sound source localization:
One recording layout
Three preconfigured analysis layouts (time and frequency-domain)
HDR and CleanSC for increased dynamic and source separation
Applications
Troubleshooting noise and vibration problems
Quality management of products and components
Leakage detection
Research & development
Close-up measurements in aerospace, automotive, electronics and appliances, education and research
Videos
HANDHELD ACOUSTIC CAMERA: Sound source analysis with Mikado
In this video, we are introducing Mikado, the portable Acoustic Camera by gfai tech GmbH. This Acoustic Camera is especially good at sensing high frequency band noise such as squeak and rattle noises. It is the perfect solution for trouble-shooting NVH problems! The ergonomically designed MEMS microphone array is maximizing the portability and convenience for the user. In this example, the Mikado was used for measuring household appliances in an acoustic lab. The sampling rate was 48.0 kHz and the chosen algorithms for the sound analysis in NoiseImage were RMS and CMS.
Acoustic measurements:
Two speakers from 1,6 meters distance. Frequency domain: 4 kHz – 23 kHz in 1 kHz steps
Vacuum from 0,6 meters distance. Frequency Domain: 1,5 kHz – 24 kHz in 1 kHz steps
Fan from 0,8 meters distance. Frequency Domain: 1 kHz – 24 kHz in 300 Hz steps
ACOUSTIC CAMERA: DynaBeam – 3D Scanning and Sound Localization
In this video we show the application of our new, patentend, solution DynaBeam on an e-bike. With the 3D scanner integrated in the microphone array, the geometry of the measurement object is recorded simultaneously with the recording of the acoustic data in a single measurement process. In NoiseImage the acoustic images of the different array positions are combined and mapped directly onto the 3D model.
ACOUSTIC CAMERA: DynaBeam – Measurement of a car engine and dashboard
In this video we show the application of our new, patentend, solution DynaBeam on a car engine and on a dashboard. With the 3D scanner integrated in the microphone array, the geometry of the measurement object is recorded simultaneously with the recording of the acoustic data in a single measurement process. In NoiseImage the acoustic images of the different array positions are combined and mapped directly onto the 3D model.
