Verification tests of a method of determining sound intensity with the application of a two microphone technique

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Authors

  • Ryszard PANUSZKA Institute of Mechanics and Vibroacoustics, Academy of Mining and Metallurgy, Poland
  • Jacek CIEŚLIK Institute of Mechanics and Vibroacoustics, Academy of Mining and Metallurgy, Poland

Abstract

The paper presents several verification results of experimental tests. These tests led to the development of software and instrumentation for the method of measuring the acoustical intensity with the application of a two microphone technique. Results of a quantitative evaluation of chosen method errors occuring for the accepted for investigation pair of microphones were presented, as well as results of investigations leading to the evaluation of the accuracy of intensity measurements done with the developed measuring system.

References

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[2] S. CZARNECKI, Z. ENGEL, R. PANUSZZKA, Measurements of the acoustical power of a piston in the near field with the correlation method, Archives of Acous., 11, 3, 261-273 (1976) (in Polish).

[3] J. J. FAHY, Measurement of acoustic intensity using the cross-spectral density of microphone signals, JASA, 62, 4 (1977).

[4] S. GADE, Sound Intensity, Technical Review, 3, 4 (1982).