한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2014년도 춘계학술대회 논문집
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- Pages.603-608
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- 2014
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- 1598-2548(pISSN)
펄스 튜브를 이용한 수중 음향 성능 측정 시스템 개발
Development of Underwater Acoustic Performance Measurement System Using Pulse Tubes
- 발행 : 2014.04.23
초록
Underwater acoustic materials are installed in order to reduce reflection, transmission and radiation of an underwater structure. The acoustic performance of the materials should be evaluated in accurately-controlled environment in terms of temperature and static pressure. In this paper, three pulse tubes, which is equipped with temperature and pressure controllers, are designed and developed to evaluate echo reduction and transmission loss for evaluating the performance below 10 kHz and 30kHz, respectively. The new procedures of the evaluation are suggested to improve the accuracy and the validation for the developed pulse tubes is carried out by comparing theoretical values to experimental ones.