한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2002년도 추계학술대회논문집
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- Pages.166-171
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- 2002
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- 1598-2548(pISSN)
전달손실계수 측정 시스템에 대하여
On the Transmission Loss Measurement System
- Ryu, Yun-Seon (Bruel & Kjaer) ;
- Kim, Yoon-Seok (Bruel & Kjaer) ;
- Callec, Philippe (PHC Solutions)
- 발행 : 2002.11.01
초록
The transmission loss coefficient is very important acoustic property in parallel with absorption and acoustic impedance categorizing the acoustical materials, which can control the acoustical problems. At the same time, the transmission loss coefficient is a key parameter to choose the optimum material for the analysis of acoustical characteristics of material using SEA(Statistical Energy Analysis). In this paper, the transmission loss coefficient measurement system using 4-microphone impedance tube is proposed, based on the idea calculating the full transfer matrix of the acoustical sample to test. The theoretical background and measurement system are introduced, and finally the measurement results are verified.