摘要
在实际计算中 ,按照国家标准 (GB1 2 3 4 9-90 )扣除背景噪声值常常会与待测声源的实际声级值产生较大的误差。利用对噪声源的实际测量数据 ,探讨这种误差产生的原因及结果 ,并建议今后采用计算结果列表查找或者直接用公式计算的方法扣除背景噪声 ,以消除因数据处理不当而产生的误差。
According to the national standard of China (GB 12349-90),there is a big error for the real level of the noise source to deduct a background value The causes and effects are discussed based on the data of the source to be measured in this paper It is suggested that listing by calculation or formulas are directly used for deducting the background value of the source so that the error could be eliminated
出处
《中国环境监测》
CAS
CSCD
北大核心
2001年第2期54-56,共3页
Environmental Monitoring in China
关键词
厂界噪声
背景值修正
测量
boundary noise, deduction of background value
approach
