摘要
对铁路系统常见的１１类４３种型号计１８７台固定性声源进行了测定，噪声级为８３．０～１３１．１ｄＢ（Ａ），线性声功率级为８９．４～１３８．６ｄＢ。大多数固定性声源呈中高频特性。
The Author surveied and determined 187 regular sound sources─classified 11kinds(43 types)─which were regular in railway system. Sound level was 83.0～ 131.1 dB(A).Liner Acoustic power level was 89.4～138.6 dB,Most regular noises assumed specific property of middle or high frequency.
出处
《铁道劳动安全卫生与环保》
1995年第3期198-202,共5页
Railway Occupational Safety Health & Environmental Protection
关键词
声功率级
固定性声源
测定
铁路
Regular sound source
Acoustic power level
Determination
