학술논문
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- 영문명
- The Effect of Time Weighting Function on the Measurement of Heavy/soft Impact Sound Pressure Level
- 발행기관
- 표준인증안전학회
- 저자명
- 정정호(Jeong Jeong Ho)
- 간행물 정보
- 『표준인증안전학회지』제4권 제1호, 31~42쪽, 전체 12쪽
- 주제분류
- 사회과학 > 사회과학일반
- 파일형태
- 발행일자
- 2014.06.30
4,240원
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국문 초록
영문 초록
Field measurement method of heavy/soft impact sound pressure level using impact ball have been used in Korea, Japan and Canada. Also this field measurement method is being discussed in ISO. It is reported that heavy/soft impact sound pressure level was varied by the sound field condition of receiving room such as sound absorption power and room volume. In this study, rubber ball sound pressure level was measured vertically connected reverberation chamber and time weighting function in analyzer changed from Slow to Peak . In order to control the receiving sound field condition, sound absorption power was changed by polyester sound absorption blanket with air space and glass wool. For the comparison of receiving sound field correction method, normalized and standardized maximum sound pressure level regulated in ISO 16032 and ISO/CD 10140-3 Amd 2 method were applied. Measurement results show that rubber impact sound pressure level was changed by the sound field condition. In order to minimized this receiving sound field condition of rubber ball sound, ISO 10140-3 Amd 2 method with Fast time weighting function shall be applied.
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