VA Lab -SP

In order to determine the sound power level produced by the noise source, one method is measuring the sound pressure level on the measurement surface enveloping a noise source.

VA-Lab SP module is specially designed to satisfy sound power level test according to ISO3745. With NI Compact DAQ and BSWA microphones, the noise level can be tested simultaneously in 10 channels; the sound power level is calculated automatically based on the measurement surface area.

Main Features

  • No limited to the number of microphone positions, but total number of positions measured simultaneously is limited by the channels of hardware

  • Real-time sound pressure level and spectrum measurement

  • Environment correction according to ISO 3745 2003

  • Correction for background sound pressure levels have two choice: correction sound pressure at each test point or at the average result of all test points

  • Correction for background noise with appointed range。(10~20dB ISO 3745, 6~15dB ISO 3744, 3~10dB ISO 3746, etc. )

  • A and linear weighting

  • Time-averaged sound pressure of each Octave frequency, Average time is optional
  • All the result build in measurement procedures are saved and can be ascended and checked

Accessories Recommended

  • MC3022/MC3122: 2-channel data acquisition
  • MC3242: 4-channel data acquisition
  • MC3012: 12-channel data acquisition
  • MC1012: 12-channel microphone conditioning with gain of X0.1,X1,X10
  • MF720: Microphone hemisphere array with 20 positions
  • MF710: Microphone hemisphere array with 10 positions
  • MPA231: 1/2 “ prepolarized free-filed measurement microphone, Type I
  • MPA416: 1/4 “ prepolarized free-filed measurement microphone, Type II
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  • Scalable solution

Overall Introduction-Data Acquisition Hardware                         Product Data


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