| 논문명 | 빔포밍 방식 음향 카메라를 활용한 공동주택 기밀성능 측정 연구/The Study on Feasibility of the Beamforming based Acoustic Camera to Detect Air Infiltration of an Apartment Building |
|---|---|
| 저자명 | 곽병창(Kwag, Byung-Chang) ; 김길태(Kim, Gil-Tae) ; 지원길(Ji, Won-Gil) ; 김태민(Kim, Tae-Min) |
| 발행사 | 한국건축친환경설비학회 |
| 수록사항 | 한국건축친환경설비학회 논문집 , Vol.14 No.6 |
| 페이지 | 시작페이지(674) 총페이지(13) |
| ISSN | 1976-6483 |
| 주제분류 | 환경및설비 |
| 주제어 | 공동주택; 기밀; 음향기법; 빔포밍 알고리즘 Apartment house; Infiltration; Acoustic approach; Beamforming algorithm |
| 요약2 | The purpose of this paper was to investigate the feasibility of the beamforming algorithm-based acoustic method with a microphone array to analyze the airtightness of buildings. Performing the field tests, the impacts of various factors related to the acoustic and airtightness performances were analyzed. From the analysis, it was found that high frequency sound waves were feasible to detect air leakage spots on the exterior wall for the acoustic approach. When comparing the sound pressure levels detected by the acoustic camera with a calibrated microphone for the verification analysis, the averaged percent differences between two instruments was 3% proving the reliability of the acoustic camera method. However, in order to produce the reliable results, this paper also found that it needs to combine the sound pressure levels of the leakage spots detected by the acoustic camera. Based on these results, this paper could conclude that it is possible to evaluate the airtightness of an exterior wall using a microphone array, based on the resulting correlation between the changes in air leakages and sound pressure level differences. |
| 소장처 | 한국건축친환경설비학회 |