噪声比对测试误差值探讨  

Discussion on Measurement Errors of Noise Contrast Test

作　　者：张飞 白煜 郝影 汪贇[5] 李宪同[5] ZHANG Fei;BAI Yu;HAO Ying;WANG Yun;LI Xiantong(Chunhua Environmental Monitoring Centre of Chunhua Branch,Xianyang Municipal Ecology and Environment Bureau,Xianyang 712299,Shaanxi,China;College of Economics and Management,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;China Association of Environmental Protection Industry,Beijing 100037,China;Tianjin Eco-Environmental Monitoring Center,Tianjin 300191,China;China National Environmental Monitoring Centre,Beijing 100012,China)

机构地区：[1]咸阳市生态环境局淳化分局淳化县环境监测站,陕西咸阳711299 [2]南京航空航天大学经济与管理学院,南京210016 [3]中国环境保护产业协会,北京100037 [4]天津市生态环境监测中心,天津300191 [5]中国环境监测总站,北京100012

出　　处：《噪声与振动控制》2024年第3期229-232,共4页Noise and Vibration Control

摘　　要：通过使用不同仪器对不同类型声源开展多次现场测试,研究分析不同仪器在不同工况下的误差值范围,以期为噪声现场比对测试、新仪器验收等提供参考和借鉴。研究表明,在40~80dB声级区间内,对同一噪声源,使用不同仪器在相对接近的同一测点进行同步监测时,95%的比对差值可控制在±1.0dB之间;超过90%的比对差值在±0.8 dB之间;超过85%的比对差值在±0.7dB之间。声源强度越大、测试时间越长,比对差值相对越小。Multiple field tests on noise sources of different type are carried out by using different instruments and the error ranges of using different instruments under different working conditions are analyzed to provide some references for noise field comparison tests and new instrument acceptance.The research results show that within the sound pressure level range of 40-80 dB,when using different instruments to conduct synchronous monitoring at the same measuring point which is relatively close to the same noise source,95%of the comparison errors can be controlled within±1.0 dB;more than 90%of the comparison errors are within±0.8 dB;more than 85%of the comparison errors are within±0.7 dB.The greater the intensity of the sound source is and the longer the test time is,the smaller the comparison errors are.

关 键 词：声学 噪声比对 噪声误差 噪声监测 噪声仪器 

分 类 号：TK417.125[动力工程及工程热物理—动力机械及工程]