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    	<div class="nyNewsDetail_Title"><h1>AHAI1002型无线建筑声学测量系统测量范围</h1></div>
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            <span><img src="/skins/158899/images/date01.png" />更新时间：2021-06-16</span><span><img src="/skins/158899/images/hit.png" />点击次数：1866</span>
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            <p style="margin: 0px 21pt 0px 11.9pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif; text-align: justify;"><strong><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">适用范围</span></span></span></strong></p><h2 style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><strong><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">1、室内混响时间测量、空气声隔声测量</span></span></span></strong></h2><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;声音达到稳态后停止发声，平均声能密度自原始值衰减60 dB所需要的时间，称之为混响时间，记做T</span></span></span><sub><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">60</span></span></span></sub><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">，单位为秒(s)。混响时间是建筑声学测量中使用得较多的参量，混响室吸声系数测量时需要混响时间，建筑隔声测量中受声室吸声量的修正要用到混响时间，它是房间室内音质很重要的声学指标，是扩声系统设计的重要计算参数，也是室内降噪设计的重要计算参数。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><strong><span style="color: rgb(0, 0, 0); font-family: 宋体; font-size: 16px;">AHAI1002型无线建筑声学测量系统适用</span><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">相关标准：</span></span></span></strong></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GBT 50076-2013&nbsp;室内混响时间测量规范</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">ISO 3382-2：2008&nbsp;声学&nbsp;房间声学参数的测量&nbsp;一般房间混响时间测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;混响时间测量可以用中断声源法（interrupted noise method），中断声源法是声源发声待室内声场达到稳态后，突然切断声源停止发声，直接记录室内某点声压级衰变曲线的方法。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;建筑构件空气声隔声的实验室测量（GB/T 19889/ISO 140），建筑构件包括墙、楼板、门、窗、建筑外墙构件和建筑外墙等，但不包括小尺寸构件。测量结果可用来设计具有良好隔声性能的建筑构件，也可用来进行建筑构件隔声性能的比较，还可以根据建筑构件的隔声性能对其进行分级。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;传统建筑声学混响时间和空气声隔声测量中，测量设备有12面体声源、功放、传声器、多通道信号分析仪、电脑，测量时12面体声源放在发声室，线缆连接到房间外的功放，功放连多通道信号分析仪。传声器装三脚架上放在受声室内，通过线缆通到房间外再连接到多通道信号分析仪，信号分析仪连接电脑。这种测量方式所有测量设备都通过线缆连接，而且多通道信号分析仪和电脑又大又重，测量不方便。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;用iSV1101无线声级计和平板代替多通道信号分析仪和电脑，它们都通过WIFI接入测量网络；功放加入信号发生单元，也通过WIFI接入测量网络，测量时软件能够自动控制声源发声，同时接收测量数据，真正达到了一键测量的目的；该方案各个房间之间无需连线，更适合某些不容易布线的场所，提高测试效率。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><strong><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">2、楼板撞击声隔声测量</span></span></span></strong></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;楼板撞击声隔声测量是用标准撞击器激励楼板，在楼板下方测量楼板撞击噪声。分为实验室测量（GB/T 19889.6 / ISO 140-6）和现场测量（GB/T 19889.7 / ISO 140-7）两种方法。适用于对光裸楼板进行测量，也适用于对覆面层的楼板进行测量。测量结果能够用于比较楼板的撞击声隔声性能，以及根据楼板的撞击声隔声性能对其进行分级。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;传统建筑声学的楼板撞击声隔声测量中，测量设备有击打器、传声器、多通道信号分析仪、电脑。测量时击打器放在在被测房间楼上一层，传声器通过缆线通到被测房间外再连接到多通道信号分析仪，多通道信号分析仪连接电脑。这种测量方式所有测量设备都通过线缆连接，而且多通道信号分析仪和电脑又大又重，测量不方便。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">&nbsp; &nbsp;为了使测量尽可能方便，我们推出了无线测量方案，用1台iSV1101无线声级计和1个平板代替多通道信号分析仪和电脑，同时标准撞击器也是无线的，它们通过WIFI连接，房间之间无需连线，更适合某些不容易布线的场所，提高测试效率。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><strong><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">3、建筑和建筑构件隔声测量</span></span></span></strong></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">（1）概述：隔声测量主要测量发声室和受声室两侧不同中心频率下的声压级差。</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">根据传播途径的不同分为：</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">A、空气声隔声测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">B、楼板撞击声隔声测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">（2）相关标准：</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T50121-2005&nbsp;建筑隔声评价标准</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.1-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第1部分：侧向传声受抑制的实验室测试设施要求</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.2-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第2部分：数据精密度的确定、验证和应用</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.3-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第3部分：建筑构件空气声隔声的实验室测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.4-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第4部分：房间之间空气声隔声的现场测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.5-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第5部分：外墙构件和外墙空气声隔声的现场测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.6-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第6部分：楼板撞击声隔声的实验室测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.7-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第7部分：楼板撞击声隔声的现场测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.8-2005声学&nbsp;建筑和建筑构件隔声测量&nbsp;第8部分：重质标准楼板覆面层撞击声改善量的实验室测量</span></span></span></p><p style="margin: 0px 0pt; padding: 0px; font-size: 12px; font-family: Helvetica, Arial, sans-serif;"><span style="font-size: 12pt;"><span style="color: rgb(0, 0, 0);"><span style="font-family: 宋体;">GB/T19889.10-2006声学&nbsp;建筑和建筑构件隔声测量&nbsp;第10部分：小建筑构件空气声隔声的实验室测量</span></span></span></p> 
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