Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Transmission Loss Measurement of Silencer with Two Microphones and Its Error Analysis

두개의 음향탐촉자를 이용한 소음기의 투과손실 측정과 오차해석

  • 강성우 (정회원,한국과학기술원 기계공학과) ;
  • 김양한 (정회원,한국과학기술원 기계공학과)
  • Published : 1992.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

A method of measuring the transmission loss of silencer using two microphone technique is described. Two microphone methol is used to elliminate the measurement error due to reflected wave spectra in inlet/outlet duct of silencer. Errors associated with the measurement method are studied. Henceforth the methods to effectively supress the influence are presented. Based on these considertions, the appropriate procedure of experimental set-up to measure the transmission loss a silencer is described with experimental verifications.

Keywords

References

  1. Theoretical Acoustics P.M.Morse;K.U.Ingard
  2. Acoustics ; Introduction to Its Physical Principles and Applications A.D.Pierce
  3. J. Sound and Vib. v.56 Development of an Impulse Techniques for Measurement of Muffler Characteristices R.Singh;T.Katra
  4. J. Acoust. Soc. Am. v.73 A Time Averaging Transient Testng Method for Acoustic Properties of Piping Systems and Mufflers with Flow T.Y.Lung;A.G.Doige
  5. J. Acoust. Soc. Am. v.61 Experimental Determination of Acoustic Properties Using a Two-mic. Random Excitation Technique A.F.Seybert;D.F.Ross
  6. J. Acoust. Soc. Am. v.68 Transfer Function method of Measuring in Duct Acoustic Properties. I. Theory, Ⅱ. Experiment J.Y.Chung;D.A.Blaser
  7. J. Acoust. Soc. Am. v.83 Two-Sensor Methods for the Measurements of Sound Intensity and Acoustic Properties in Duct A.F.Seybert
  8. J. Acoust. Soc. Am. v.69 Error Analysis of Spectral Estimates with Application to the Measurement of Acoustic Parameters Using Random Sound Fields in Ducts A.F.Seybert;Benjamin Soenarko
  9. J. Acoust. Soc. Am. v.79 Influence of Errors on the Two-mic. Method for Measuring Acoustic Properties in Ducts Hans Boden;Mats Abom
  10. J. Acoust. Soc. Am. v.83 Error Analysis of Two-Microphone Measurements in Ducts with Flow Mate Abom;Hans Boden
  11. Random Data; Analysis and Measurements Procedures J.S.Bendat;A.G.Piersol
  12. Proc. Korea. Soc. for Noise and Vib. Eng. Transmission Loss Measurement of Silencer with Two Microphones and Its Error Analysis Yang Hann Kim;Seong Woo Kang
  13. Sound Intensity F.J.Fach