「55.等価騒音レベル」の編集履歴（バックアップ）一覧はこちら

55.等価騒音レベル - (2005/12/26 (月) 13:25:43) の１つ前との変更点

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削除された行は赤色になります。

<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">
・等価騒音レベル</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">
非定常騒音について、一定期間の平均的な騒音の程度を表す指標のひとつ。通常、騒音レベルは時間とともに変動するため、その評価にあたっては、一定の測定時間内でこれに等しい平均</span><span lang="EN-US"><font face="Century">2</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">乗音圧を与える連続定常音の騒音レベルを使用している。単位はデシベル（</span><span lang="EN-US"><font face="Century">dB</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">）である。</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span lang="EN-US"><span lang=
"EN-US"><font face="Century">L<sub>aeq</sub></font></span><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">＝</span><span lang="EN-US"><font face="Century">10log</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">｛</span><span lang="EN-US"><font face="Century">1/T∫<sub>T</sub>(p<sub>A</sub><sup>2</sup>/p<sub>0</sub><sup>2</sup>)dt</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">｝</span></span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt">

<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">
・等価騒音レベル</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">
非定常騒音について、一定期間の平均的な騒音の程度を表す指標のひとつ。通常、騒音レベルは時間とともに変動するため、その評価にあたっては、一定の測定時間内でこれに等しい平均</span><span lang="EN-US"><font face="Century">2</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">乗音圧を与える連続定常音の騒音レベルを使用している。単位はデシベル（</span><span lang="EN-US"><font face="Century">dB</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">）である。</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span lang="EN-US"><span lang=
"EN-US"><font face="Century">L<sub>Aeq</sub></font></span><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">＝</span><span lang="EN-US"><font face="Century">10log</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">｛</span><span lang="EN-US"><font face="Century">1/T∫<sub>T</sub>(p<sub>A</sub><sup>2</sup>/p<sub>0</sub><sup>2</sup>)dt</font></span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">｝</span></span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt">?</p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt"><span lang="EN-US" style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: Century; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-fareast-font-family: 'ＭＳ 明朝'">
L<sub>Aeq</sub></span><span style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: 'ＭＳ 明朝'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: Century; mso-hansi-font-family: Century; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA">＝</span><span lang="EN-US"
style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: Century; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-fareast-font-family: 'ＭＳ 明朝'">10log[(10<sup>(Pa1</sup><sup>/10)</sup></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'ＭＳ 明朝'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: Century; mso-hansi-font-family: Century; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA">＋</span><span lang="EN-US"
style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: Century; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-fareast-font-family: 'ＭＳ 明朝'">10<sup>(Pa2</sup><sup>/10)</sup></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'ＭＳ 明朝'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: Century; mso-hansi-font-family: Century; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA">＋</span><span lang="EN-US"
style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: Century; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-fareast-font-family: 'ＭＳ 明朝'">...</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'ＭＳ 明朝'; mso-bidi-font-family: 'Times New Roman'; mso-ascii-font-family: Century; mso-hansi-font-family: Century; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA">＋</span><span lang="EN-US"
style=
"FONT-SIZE: 10.5pt; FONT-FAMILY: Century; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: JA; mso-bidi-language: AR-SA; mso-fareast-font-family: 'ＭＳ 明朝'">10<sup>(Pan</sup><sup>/10)</sup>)/n]</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt; TEXT-INDENT: 42pt">?</p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt; TEXT-INDENT: 42pt"><span lang=
"EN-US"><font face="Century">cf</font></span><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">、時間率騒音レベル</span></p>
<p class="MsoNormal" style="MARGIN: 0mm 0mm 0pt 42pt"><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">
騒音レベルが</span><span lang="EN-US"><font face=
"Century">L(dB)</font></span><span style=
"FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">以上となる時間が測定時間のｘ％を占めるとき、このレベルをｘ％時間率騒音レベルといい、Lx</span><span style="FONT-FAMILY: 'ＭＳ 明朝'; mso-ascii-font-family: Century; mso-hansi-font-family: Century">とかく。</span></p>
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