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声音传感器的原理 [复制链接]

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声音传感器的原理Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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声音传感器的工作原理Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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传感器内置一个对声音敏感的电容式驻极体话筒。声波使话筒内的驻极体薄膜振动,导致电容的变化,而产生与之对应变化的微小电压。这一电压随后被转化成0-5V的电压,经过A/D转换被数据采集器接受,并传送给计算机。Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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声音传感器的作用相当于一个话筒(麦克风)。它用来接收声波,显示声音的振动图象。但不能对噪声的强度进行测量。Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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BR-ZS1声音传感器Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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BR-ZS1声音传感器是一款工业标准输出(420mA)的积分噪声监测仪,符合GB3785GB/T17181等噪声监测标准,BR-ZS1声音传感器针对噪声测试需求而设计,支持现场噪声分贝值实时显示,兼容用户的监控系统,对噪声进行定点 全天侯监测,可设置报警极限对环境噪声超标报警,该监测仪精度高、通用性强、性价比高成为其显著的特点,广泛应用于交通干道噪声监测、工业企业厂界噪声检测、建筑施工场界噪声检测、城市区域环境噪声检测、社会生活环境噪声检测监测和评估。Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH

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BR-ZS1声音传感器的参数:Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
测量范围:30~120dB(A)Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
频率范围:20Hz~8kHzÅþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
频率计权:A(计权)Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
时间计权:F(快)Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
输出接口: 4~20mA/RS232Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
灵 敏 度:电压41.5mV/dB;    电流0.133mA/dBÅþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
最大误差:0.5dBÅþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
供    电:220V市电或24V DCÅþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
尺寸大小:200mm×104mm×50mmÅþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
外形材质:铝合金外壳,坚固防腐Åþ‹^éwT8–bbs.3c3t.com|i‹œÁfeH
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