NetdB Pro-330

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NetdB Pro-330

Sound Imaging Starter Kit

Track the noise with images!

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Overview

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Main Functions

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Applications

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Specifications

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OVERVIEW

NetdB PRO-330: Sound Imaging starter kit.
NetdB-DAQ6 with a 6 channel linear array of microphones driven by dBVISION Pro-software package: a most compact solution providing the unrivaled accuracy of Nearfield Acoustical Holography for noise sources localization.

The power of Nearfield Acoustical Holography (NAH) in this starter package providing you with the minimum set of tools for tracking your first noise images!

NetdB PRO-330 based on a 6ch expandable data acquisition platform is an ideal system for small to medium size objects,offering:

bulletBest accuracy in noise Source localization
bulletHolography, Intensity and partial power processing functions
bulletSource quantification through immediate radiated power evaluation (global & partial)
bulletExpandabililty to capturing the real test situation (RELAX technology)

 

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Main functions


Portable and Expandable

bullet6ch NetdB-DAQ front-end easily expandable to 12 channels or more
bulletBuilt-in batteries up to 1.45 hour autonomy
bulletCompact user-friendly 6-microphones hand-held array
bulletRemote control unit possibly acting as an array holder
bulletSeparate array holding device (mechanical frame with fixed spacing marks)

Diagnosis, comparison, optimization...cost effective

bulletAccurate Source localization and ranking on any tested equipment
bullet2D map visualization on top of numerical pictures of test object for easier exchanges with design office and project management
bulletPerfect tool for benchmarking competing solutions
bulletData import/export to MatlabTM offering extended processing capabilities
bulletFully automated test procedures relying on robotized instrumentation for increasing added value time, dedicated to analyzing processed data and developing your most competitive solution

Options (dBVision software suite)

bulletExtended simulation capabilities for radiated noise estimation
bulletDiffused measurement mesh processing (RELAX technology)
bulletPatented IPS coupled to remotely driven DAQ system for reducing time & test facility costs
bulletRobot driven operations (hardware/software components)


 

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Applications

Automotive, Aeronautics, Railway, Ships, Motorbikes, Components Manufacturers, Construction Machines, Mechanics, Materials, Electric appliances/IT, Household appliances

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SPECIFICATIONS

Acoustic Array

bulletNumber of microphones: 6 (expandable to 12)
bulletMicrophone spacing: 5 cm (possibility of overlapping measurements to increase the mesh density)
bulletTotal weight: 350 g
bulletHandle/Remote control unit: Start/stop commands integrated, hinged system for a better accessibility to confined regions
bulletConnectors: 6 BNC connected to the NetdB, serial port connected to the computer for the remote control

Microphones

bulletDiameter: ¼ inch
bulletOutput connector: SMB coaxial socket
bulletLength: 60.0 mm
bulletWeight: 5.5 g
bulletSensitivity at 250 Hz: 8 mV/Pa (nominal)
bulletDynamic range:
Lower limit < 30 dBA re. 20µPa
Upper limit 138 dB re. 20µPa
bulletFrequency response:
100 Hz - 3 kHz ± 1dB
3 kHz - 10 kHz ± 2dB
bulletOutput impedance: < 50 Ohm
bulletPhase Match:
100 Hz - 3 kHz: ± 3°
3 kHz - 5 kHz: ± 5°
bulletTemperature Range: -10 °C to +50 °C
bulletPower supply: 2 mA to 20 mA (typically 4 mA)

NetdB 12 channels

bulletDimensions: 250mm(W) x 85mm(H) x 263mm(D) excluding projections
bulletWeight: 4.5 kg
bulletInput channels: 12 dynamic channels with IEPE* power supply
bulletDigitization: 24 bits
bulletSampling frequency:     51.2kHz, 25.6kHz, 12.8kHz
bulletRanges:
- 20 dB: 14.1 V peak or 10 V RMS
- 0 dB: 1.41 V peak or 1 V RMS
- +20 dB : 141 mV peak or 100 mV RMS
bulletSNR: > - 105 dB RMS of the full scale
bulletData storage: 100 GB HDD (12 hours of continuous measurement @ 12 channels 51.2KHz 24bit)
bulletOutput channels: 2 x BNC connectors
bulletPhones: Jack connector - Stereo output for Headphones
bulletDigital Input/Output: RCA connector for SPDIF In/Out digital audio
bulletPower: 20 W
bulletVoltage: 12 to 14 VDC          
bulletMax current: 3.5 A
bulletBattery life: 2 hours as a stand alone solution   
bulletAdapter: AC 110 V / 250 V

Software for Recording/Analysis

dBVision-PRO software package:

bulletPlanar or Cylindrical holography (up to customer's choice),
bulletIntensity maps
bulletReporting Module
bulletData import/export to MatlabTM
bullet3D View graphics capabilities/photo-image superimposition
bulletGlobal Power computation

Source Ranking module:

Partial power computations and Source ranking according to selected zones (patch definition)

Software Options

bulletdBVision TL: Transmission Loss computations possibly using selected zones definition (patch definition)
bulletdBVision FAR: Far-field predictions capabilities, radiations patterns (directivity, polar diagrams, ...)
bulletdBVision EARPREDICT: CABIN Noise level predictions at arbitrary location inside an enclosure
bulletdBVision RELAX: Automatic projection of measurement data onto regular grids from arbitrary antenna locations
bulletdBVISION IPS: Data acquisition/management with Instrumentation Positioning System of dBVision

* IEPE: Integrated PiezoElectric Electronic

 

 

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PICTURE

 

 

 

 

 

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