耳塞隔声性能的客观测量  

The objective measurement of sound insulation of earplug

作　　者：王吉荣[1] 方启文[1] 龚农斌[1] 

机构地区：[1]同济大学声学研究所,上海200092

出　　处：《声学技术》2002年第3期115-117,共3页Technical Acoustics

摘　　要：根据真人耳道的结构特性 ,研制了一种客观测量耳塞隔声性能的方法———“人工耳道”法 ,并与测量耳塞隔声性能的主观阈值法进行了比较 ,结果表明 :用“人工耳道”法测量耳塞的隔声性能比主观阈值法具有更好的通用性 ,能方便地对线性或非线性耳塞进行隔声测量和频谱测量 ,且离散度小 ,重复率高 ,比较准确地反映了实际情况下耳塞的单一隔声性能。According to the structural property of actual meatus auditorius,We develop an objective method of artifical meatus auditorius to measure sound insulation performance of earplug.We compare it with subjective threshold method and find that the former method is more universal than the latter.Artifical meatus auditorius method can measure conveniently sound insulation and spectrum of linear or nolinear earplug.It also have the advantages of low discrete and high repetition rate.Its measured data can descript s...

关 键 词：耳塞 隔声性能 人工耳道 

分 类 号：TB535[理学—物理]