Key Features

Portable and Expandable

• 6ch NetdB-DAQ front-end easily expandable to 12 channels or more
• Built-in batteries – up to 1.45 hour autonomy
• Compact user-friendly 6-microphones hand-held array
• Remote control unit possibly acting as an array holder
• Separate array holding device (mechanical frame with fixed spacing marks)

Diagnosis, comparison, optimization...cost effective

• Accurate Source localization and ranking on any tested equipment
• 2D map visualization on top of numerical pictures of test object for easier exchanges with design office and project management
• Perfect tool for benchmarking competing solutions
• Data import/export to MatlabTM offering extended processing capabilities
• Fully 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)

• Extended simulation capabilities for radiated noise estimation
• Diffused measurement mesh processing (RELAX technology)
• Patented IPS coupled to remotely driven DAQ system for reducing time & test facility costs
• Robot driven operations (hardware/software components)

Application

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

PRO-330 Technical Specifications

Acoustic Array

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

Microphones

• Diameter: ¼ inch
• Output connector: SMB coaxial socket
• Length: 60.0 mm
• Weight: 5.5 g
• Sensitivity at 250 Hz: 8 mV/Pa (nominal)
• Dynamic range:
  Lower limit < 30 dBA re. 20µPa
  Upper limit 138 dB re. 20µPa
• Frequency response:
  100 Hz - 3 kHz ± 1dB
  3 kHz - 10 kHz ± 2dB
• Output impedance: < 50 Ohm
• Phase Match:
  100 Hz - 3 kHz: ± 3°
  3 kHz - 5 kHz: ± 5°
• Temperature Range: -10 °C to +50 °C
• Power supply: 2 mA to 20 mA (typically 4 mA)

NetdB 12 channels

• Dimensions: 250mm(W) x 85mm(H) x 263mm(D) excluding projections
• Weight: 4.5 kg
• Input channels: 12 dynamic channels with IEPE power supply
• Digitization: 24 bits
• Sampling frequency:     51.2kHz, 25.6kHz, 12.8kHz
• Ranges:
  - 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
• SNR: > - 105 dB RMS of the full scale
• Data storage: 100 GB HDD (12 hours of continuous measurement @ 12 channels 51.2KHz 24bit)
• Output channels: 2 x BNC connectors
• Phones: Jack connector - Stereo output for Headphones
• Digital Input/Output: RCA connector for SPDIF In/Out digital audio
• Power: 20 W
• Voltage: 12 to 14 VDC          
• Max current: 3.5 A
• Battery life: 2 hours as a stand alone solution   
• Adapter: AC 110 V / 250 V

Software for Recording/Analysis

dBVision-PRO software package:

• Planar or Cylindrical holography (up to customer's choice),
• Intensity maps
• Reporting Module
• Data import/export to MatlabTM
• 3D View graphics capabilities/photo-image superimposition
• Global Power computation

Source Ranking module:

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

Software Options

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