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Active Noise Control Experiment Minimising Radiation of Active Energy

  • Uli Krause
  • Delf SachauEmail author
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

The test set-up consists of so-called primary loudspeakers simulating the noise source and so-called secondary loudspeakers belonging to the active noise system (ANS). The ANS has two accelerometers and one microphone per secondary speaker. The microphone is located in the near sound field of the secondary loudspeaker. One accelerometer is fixed onto the loudspeaker cone. The other accelerometer is attached to the noise source. The control algorithm contains an adaptive feed-forward scheme for the amplitude of the control signal and an approach to compensate phase deviations. The ANS is tested in a configuration with two primary and two secondary loudspeakers.

Keywords

Adaptive control Acoustics Active control Adaptive structures Sound intensity 

References

  1. 1.
    Böhme S, Sachau D (2010) Single channel system for adaptive power minimization. In: Proceedings INTERNOISE 2010, LisboaGoogle Scholar
  2. 2.
    Tanaka N, Takahashi K (2009) Active acoustic power control using zero power strategy. In: Proceedings INTERNOISE 2009, OttawaGoogle Scholar
  3. 3.
    Elliott SJ, Joseph P, Nelson PA, Johnson ME (1991) Power output minimization and power absorption in the active control of sound. J Acoust Soc Am 90(5):2501–2512CrossRefGoogle Scholar
  4. 4.
    Haykin S (2001) Adaptive filter theory. Prentice Hall, New JerseyGoogle Scholar
  5. 5.
    Fahy F (1998) Sound intensity. Spon Press, LondonGoogle Scholar

Copyright information

© The Society for Experimental Mechanics, Inc. 2015

Authors and Affiliations

  1. 1.Helmut-Schmidt-University, University of the Federal Armed Forces HamburgHamburgGermany

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