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吸音板——噪音的危害

作者：潘先生閱讀量：发布日期： 2021/11/23 9:45:13

信息摘要：

噪音是由許多不同頻率和不同強度的雜亂聲音組合而成，噪聲對人類的危害是多方面的，但對聽覺器官的損害最爲明顯

噪音是由許多不同頻率和不同強度的雜亂聲音組合而成，噪聲對人類的危害是多方面的，但對聽覺器官的損害最爲明顯。噪音对人类听觉器官的影响大致可分为两类情况：听力疲劳和噪声性耳聋。

1. 在噪声环境下出现的听力疲劳，即听觉受强噪声的损害，当离开噪音环境，在安静的地方耳朵里仍嗡嗡作响，待过一段时间后，耳鸣消失，听力即能恢复，这就是听力疲劳现象。

2. 长时间在强烈的噪声环境下工作，听神经细胞在噪声的刺激下，发生病理性损害，就使暂时性听力下降变为永久性听力下降，叫做噪声性耳聋。

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