建筑物理環(huán)境噪聲測(cè)量實(shí)驗(yàn)報(bào)告

1、學(xué)生實(shí)驗(yàn)報(bào)告（理工類）課程名稱：專業(yè)班級(jí)：學(xué)生學(xué)號(hào)：學(xué)生姓名：所屬院部：指導(dǎo)教師：20 1120 12學(xué)年第2學(xué)期金陵科技學(xué)院教務(wù)處制實(shí)驗(yàn)項(xiàng)目名稱：環(huán)境噪聲測(cè)量實(shí)驗(yàn) 實(shí)驗(yàn)學(xué)時(shí)：4同組學(xué)生姓名：實(shí)驗(yàn)地點(diǎn)：實(shí)驗(yàn)日期：實(shí)驗(yàn)成績：批改教師：批改時(shí)間：一、實(shí)驗(yàn)?zāi)康暮鸵螅?）掌握噪聲測(cè)量的方法，對(duì)噪聲的大小有一個(gè)主觀的認(rèn)識(shí)（2）學(xué)會(huì)使用聲級(jí)計(jì)；（3）分析噪聲的大小與來源，得知建筑是否符合規(guī)定。二、實(shí)驗(yàn)儀器和設(shè)備HS5633型聲級(jí)計(jì)三、實(shí)驗(yàn)過程（1）測(cè)點(diǎn)的選擇：建筑物外1m處，高1.2m;（2）檢查聲級(jí)計(jì)的電池電力并采用校準(zhǔn)器對(duì)其進(jìn)行校準(zhǔn)；（3）測(cè)量應(yīng)在無風(fēng)雪、無雷電天氣，風(fēng)速5m/s以下進(jìn)行。大風(fēng)時(shí)應(yīng)

2、停止測(cè)量；（4）記錄聲級(jí)計(jì)讀數(shù)值，保持聲級(jí)計(jì)在L檔，每隔5秒讀一個(gè)數(shù)值, 共記錄200個(gè)數(shù)。四、實(shí)驗(yàn)結(jié)果與分析原理：將記錄的200個(gè)數(shù)從大到小的順序排列，第20個(gè)數(shù)值就是L10， L10反映交通噪聲的峰值；第100個(gè)數(shù)值就是L50，第180個(gè)數(shù)值就是 l90，l90反映背景噪聲值。等效聲級(jí)反映了在測(cè)量的時(shí)間內(nèi)聲能的平均分布情況。計(jì)算公式：Leq=L5o+d2/60 其中d=Lio-L9o 測(cè)量得出數(shù)據(jù)（單位：db）：167.72658.45157.07654.210152.412651.415149.417648.1267.52758.45256.87754.210252.412751.315

3、249.417748.0366.92858.45356.87854.110352.412851.315349.417847.8464.52958.35456.67954.010452.312951.015449.317947.7563.83058.35556.68053.910552.313050.915549.218047.5660.43158.25656.58153.810652.313150.715649.218147.5760.43258.25756.58253.810752.213250.615749.218247.5860.13358.15856.48353.810852.2133

4、50.415849.218347.4959.73458.15956.38453.710952.113450.315949.118447.31059.73558.06056.38553.711052.113550.216049.118547.21159.63657.96156.28653.511152.113650.116149.018647.21259.53757.96256.08753.511252.013750.116248.918747.01359.43857.86356.08853.511352.013850.116348.918846.91459.33957.86455.88953.

5、511452.013950.016448.918946.91559.34057.76555.79053.511552.014049.916548.919046.81659.34157.76655.79153.411652.014149.916648.919146.71759.24257.66755.79253.211751.914249.916748.819246.61859.04357.56855.49353.211851.914349.816848.719346.41958.94457.56955.39453.211951.914449.816948.719446.22058.94557.

6、57055.39553.212051.814549.717048.719545.82158.94657.57155.09653.212151.814649.717148.619645.32258.84757.47254.99753.012251.614749.717248.619745.02358.74857.47354.89852.912351.614849.617348.519844.72458.74957.27454.69952.612451.514949.617448.519944.42558.55057.17554.310052.412551.515049.617548.120044.2依據(jù)測(cè)量的的數(shù)據(jù)得出：L10（在 10%時(shí)最大噪音峰值）=58.9dbL50 （在200個(gè)數(shù)據(jù)中最大平均值）=52.4 dbL