噪声比对测试误差值探讨
Discussion on Measurement Errors of Noise Contrast Test
张飞 1白煜 2郝影 3汪贇 4李宪同4
作者信息
- 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;中国环境保护产业协会,北京 100037
- 3. 天津市生态环境监测中心,天津 300191
- 4. 中国环境监测总站,北京 100012
- 折叠
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40～80 dB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±1.0 dB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±0.7 dB之间.声源强度越大、测试时间越长,比对差值相对越小.
Abstract
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Key words
acoustics/noise comparison/noise errors/noise monitoring/noise instrument引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据