人声级计(噪音计)测定噪声原理

hongcheng1718

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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;text-align:left;text-indent:21.0pt;mso-pagination:widow-orphan" align="left"><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
mso-font-kerning:0pt" lang="EN-US"><a href="http://www.hcjyet.com"><span lang="EN-US"><span lang="EN-US">声级计</span></span></a></span><span style="font-size:12.0pt;
font-family:宋体;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:
&quot;Times New Roman&quot;;mso-bidi-font-family:宋体;mso-font-kerning:0pt">又叫</span><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
mso-font-kerning:0pt" lang="EN-US">(</span><span style="font-size:12.0pt;font-family:宋体;
mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;
mso-bidi-font-family:宋体;mso-font-kerning:0pt">噪音计</span><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:
0pt" lang="EN-US">) </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
宋体;mso-font-kerning:0pt">是噪声测量中最基本的仪器。声级计一般由电容式传声器、前置放大器、衰减器、放大器、频率计权网络以及有效值指示表头等组</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
宋体;mso-font-kerning:0pt">是用来测量一段时间内不稳态噪声的等效声级的。噪声剂量计也是一种积分式</span><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
mso-font-kerning:0pt" lang="EN-US"><a href="http://www.hcjyet.com"><span lang="EN-US"><span lang="EN-US">声级计</span></span></a></span><span style="font-size:12.0pt;
font-family:宋体;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:
&quot;Times New Roman&quot;;mso-bidi-font-family:宋体;mso-font-kerning:0pt">，主要用来测量噪声暴露量。</span><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:
0pt"> </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:
&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;mso-bidi-font-family:
宋体;mso-font-kerning:0pt">脉冲式声级计是用于测量脉冲噪声的，这种声级计符合人耳对脉冲声的响应及人耳对脉冲声反应的平均时间。</span><span style="font-size:12.0pt;mso-bidi-font-size:10.5pt;font-family:宋体;mso-bidi-font-family:
宋体;mso-font-kerning:0pt">本文转自 <span lang="EN-US"><a href="http://www.hcjyet.com/"><span style="mso-bidi-font-size:12.0pt">http://www.hcjyet.com</span></a>&nbsp; </span><b>声级计</b></span><span style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体;
mso-font-kerning:0pt" lang="EN-US"></span></p>

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