단독경보형감지기 발생음 패턴에 따른 음향 특성 연구 (Acoustical Characteristics of the Single Alarm Detector in Terms of Sound Pattern)

서지정보

· 발행기관 : 한국소음진동공학회
· 수록지 정보 : 한국소음진동공학회논문집 / 29권 / 6호 / 745 ~ 752페이지
· 저자명 : 백은선, 박현구

초록

The household smoke alarm is a warning device used to minimize damage in case of fire in a house or business. There are many types of fire detectors, but smoke alarms are known to be the most efficient. This study was conducted to analyze the acoustic characteristics of household smoke alarms. Thirteen domestic and overseas products were measured to determine whether the acoustic characteristics meet the legal thresholds when the sensor generates sounds. The changes in the characteristics of the detector when the power supply voltage dropped, were also analyzed. As a result, most of the measured products met the legal standard; however, one of the contents of the generated sound source did not meet the standard. As a result of measuring the alarm sound and the voice being separate, it was found that the alarm sound satisfies the legal regulation, but the voice was not satisfactory in most cases. Furthermore, when the supply voltage drops, some of the products do not meet the legal regulation, which was judged to be a problem due to the simultaneous use of alarm and voice in one product. In the case of a mixed of alarm sound and voice, the sound pressure level should be designed to be clearly distinguished according to the type of sound source.

영어초록

The household smoke alarm is a warning device used to minimize damage in case of fire in a house or business. There are many types of fire detectors, but smoke alarms are known to be the most efficient. This study was conducted to analyze the acoustic characteristics of household smoke alarms. Thirteen domestic and overseas products were measured to determine whether the acoustic characteristics meet the legal thresholds when the sensor generates sounds. The changes in the characteristics of the detector when the power supply voltage dropped, were also analyzed. As a result, most of the measured products met the legal standard; however, one of the contents of the generated sound source did not meet the standard. As a result of measuring the alarm sound and the voice being separate, it was found that the alarm sound satisfies the legal regulation, but the voice was not satisfactory in most cases. Furthermore, when the supply voltage drops, some of the products do not meet the legal regulation, which was judged to be a problem due to the simultaneous use of alarm and voice in one product. In the case of a mixed of alarm sound and voice, the sound pressure level should be designed to be clearly distinguished according to the type of sound source.

참고자료

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