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®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È噪声的概念:®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È声音的本质是波动。受作用得空气发生振动,当震动频率在20-20000Hz时,作用于人的耳鼓膜而产生的感觉称为声音。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È广义上来讲,这些人们生活和工作所不需要的声音叫噪声;从物理现象判断,一切无规律的或随机的声信号叫噪声。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È噪声的污染特点:®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È噪声是一种感觉污染; ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È不带来化学污染物质,只是由于声能——人耳——危害; ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È噪声的分布广泛而分散,噪声污染的影响范围是有限的,传播不远;®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È能量衰减;®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È噪声产生的污染没有后效作用,声源停止,噪声消失,无积累现象,不留痕迹。但噪声对人听力造成的损失是有累积性的。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È工地噪声监测仪的介绍:®/b!}*-bbs.3c3t.com¿5±<Î;}Í@ÈBR-ZS1 噪声监测仪®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È4-20mA工业标准输出,一体化设计,连续监测,用于厂界及噪声敏感建筑物的噪声定点监测及连续在线监测。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@ÈTZ-2KA 噪声传感器®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È20HZ~20 KHZ频率响应,覆盖频段广,配接动态信号分析仪,实现对噪声的分析监测。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@ÈBR-N201 智能噪声监测仪®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È自动生成噪声分贝值-时间曲线,连续对噪声进行监测,便于监测结果存档及监测报告制作。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È ®/b!}*-bbs.3c3t.com¿5±<Î;}Í@ÈBR-N301 噪声远程监测系统®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È多点、远程对噪声进行在线监测,适用于公众场所噪声监测项目、环境治理项目。®/b!}*-bbs.3c3t.com¿5±<Î;}Í@È