校園噪聲測定報(bào)告

1、金 華 職 業(yè) 技 術(shù) 學(xué) 院JINHUA COLLEGE OF PROFESSION AND TECHNOLOGY噪聲控制技術(shù)實(shí)訓(xùn)成果專 業(yè) 環(huán)境監(jiān)測與治理技術(shù) 班 級 環(huán)保102 組 號 第六組 組 長 成 員 成 績 2012年6月2日校園噪聲監(jiān)測一、實(shí)訓(xùn)目的1、訓(xùn)練學(xué)生獨(dú)立完成環(huán)境噪聲監(jiān)測任務(wù)的能力；2、使學(xué)生學(xué)會(huì)熟練聲級計(jì)的使用方法；3、訓(xùn)練對非穩(wěn)態(tài)的無規(guī)則噪聲監(jiān)測數(shù)據(jù)的處理方法，對監(jiān)測結(jié)果的分析和評價(jià)能力。二、實(shí)訓(xùn)任務(wù)：1、確定環(huán)境噪聲監(jiān)測方案；2、對環(huán)境噪聲進(jìn)行監(jiān)測；3、數(shù)據(jù)處理，以合理的方式表示監(jiān)測結(jié)果；4、寫出環(huán)境監(jiān)測實(shí)訓(xùn)報(bào)告，并對環(huán)境質(zhì)量進(jìn)行簡單評價(jià)。 三、實(shí)訓(xùn)步驟制訂噪聲

2、監(jiān)測方案（1）將學(xué)校（或某一地區(qū)）劃分25×25m的網(wǎng)格，測量點(diǎn)選在每個(gè)網(wǎng)格的中心，若中心點(diǎn)的位置不宜測量，可移到旁邊能夠測量的位置。（2）每組3人配置一臺聲級計(jì)，順序到各網(wǎng)點(diǎn)測量，每一網(wǎng)格至少測量1次，共10個(gè)點(diǎn)，時(shí)間間隔盡可能相同。（3）讀數(shù)方式用慢檔，每隔5秒讀一個(gè)瞬時(shí)A聲級，連續(xù)讀取200個(gè)數(shù)據(jù)。讀數(shù)同時(shí)要判斷和記錄附近主要噪聲來源（如交通噪聲、施工噪聲、工廠或車間噪聲、鍋爐噪聲）和天氣條件。四、數(shù)據(jù)處理環(huán)境噪聲是隨時(shí)間而起伏的無規(guī)律噪聲，因此測量結(jié)果一般用統(tǒng)計(jì)值或等效聲級來表示，本實(shí)驗(yàn)用等效聲級表示。（1）將各網(wǎng)點(diǎn)每一次的測量數(shù)據(jù)（200個(gè)）順序排列找出L10、L50、L9

3、0，求出等效聲級Leq，再將該網(wǎng)點(diǎn)一整天的各次Leq值求出算術(shù)平均值，作為該網(wǎng)點(diǎn)的環(huán)境噪聲評價(jià)量。 （2）以5dB為一等級，用不同顏色或陰影線繪制學(xué)校（或某一地區(qū)）噪聲污染圖。51525354555657585960L1044.441.848.448.143.141.759.158.448.350.2L5047.342.851.851.946.343.661.560.453.755.9L9050.843.754.154.448.344.763.762.559.160.7Lep47.9842.8652.3452.5646.7543.7561.8560.6855.6457.74第六組的數(shù)據(jù)43.3

4、40.646.746404457.652.446.94643.540.946.746.141.540.757.755.146.946.34441.347.546.342.140.958.456.44746.74441.347.546.642.341.258.556.547.146.844.141.447.746.742.441.458.757.147.448.744.441.547.747.342.541.458.758.147.748.844.441.748.147.542.841.558.958.147.849.444.441.848.147.942.841.65958.347.850.2

5、44.441.848.248.142.941.75958.348.150.2L1044.441.848.448.143.141.759.158.448.350.244.741.848.748.443.241.859.158.748.850.344.841.848.948.643.341.959.258.949.150.344.941.848.948.843.441.959.258.949.350.44541.948.948.843.441.959.259.149.550.44541.94948.843.54259.259.249.750.845.141.949.148.843.74259.55

6、9.249.750.945.14249.149.143.842.159.659.349.95145.14249.249.243.842.259.659.350.151.245.24249.249.24442.259.759.350.151.345.24249.449.444.142.359.759.450.251.745.44249.549.544.142.359.859.550.45245.54249.649.644.442.459.959.550.652.145.54249.65044.542.56059.550.752.145.542.149.750.144.542.56059.550.

7、852.145.742.149.850.144.742.560.159.650.852.245.842.149.950.144.742.660.159.650.952.245.942.25050.244.842.760.259.650.952.345.942.25050.444.842.760.359.75152.845.942.250.150.444.842.760.359.751.152.845.942.350.150.544.942.860.359.751.152.845.942.350.250.544.942.860.459.751.253.34642.350.350.545.142.

8、960.559.751.453.34642.350.350.745.142.960.559.851.553.64642.450.550.745.142.960.660.151.753.746.242.550.650.745.24360.860.151.953.846.242.55150.845.243.160.960.152.253.946.242.551.15145.243.26160.152.353.946.342.651.25145.343.26160.252.854.246.342.651.251.145.443.361.160.252.854.246.642.651.351.145.

9、443.361.160.252.854.846.642.651.351.145.543.361.160.252.854.846.742.651.351.145.643.361.160.252.954.846.842.751.451.445.743.461.160.252.954.946.842.751.651.545.743.461.260.25355.346.942.751.651.646.143.561.260.253.155.34742.751.651.746.143.561.260.353.355.547.142.751.751.746.243.561.360.353.455.647.

10、142.851.751.846.343.561.360.453.455.847.242.851.751.846.343.661.460.453.655.8L5047.342.851.851.946.343.661.560.453.755.947.342.851.951.946.443.761.660.453.856.147.342.851.951.946.643.761.660.45456.247.442.9525246.643.761.660.454.256.347.442.9525246.643.761.660.554.356.347.443525246.643.761.660.654.4

11、56.347.44352.15246.743.861.760.654.756.447.74352.152.146.743.861.760.754.856.747.84352.252.146.743.861.760.754.85747.84352.352.146.743.861.760.754.85747.94352.352.246.943.961.860.85557.348.14352.552.246.943.961.960.955.257.448.243.152.652.24743.961.96155.257.448.243.152.652.34743.9626155.357.748.243

12、.152.852.447446261.155.357.848.343.152.952.74744.26261.255.457.948.343.152.952.847.144.262.161.355.758.248.443.25352.847.244.262.261.355.758.348.443.25352.947.244.262.261.355.858.348.843.25352.947.344.362.261.355.858.348.843.353.15347.444.362.261.455.858.448.843.353.25347.444.362.361.555.958.648.943

13、.353.25347.444.362.461.556.258.748.943.453.353.147.444.362.561.556.55948.943.453.353.147.544.362.561.556.7594943.453.353.247.644.362.561.656.859.14943.453.353.347.744.362.761.657.159.14943.453.353.447.744.462.761.957.159.44943.453.353.547.744.4636257.159.44943.453.453.547.744.463.26257.659.749.143.5

14、53.453.647.844.463.26257.959.849.643.553.453.647.844.563.362.157.959.949.743.553.553.847.944.663.462.158.160.349.843.553.553.847.944.663.462.158.160.350.443.653.653.94844.663.462.158.260.350.543.653.6544844.663.562.158.360.450.643.653.654.148.144.763.562.258.460.450.743.653.854.148.244.763.562.258.4

15、60.750.743.653.954.148.244.763.562.358.960.750.843.65454.248.344.763.562.35960.7L9050.843.754.154.448.344.763.762.559.160.75143.754.154.548.344.863.762.659.160.95143.754.154.748.544.863.962.659.2615143.854.254.748.644.86462.659.361.151.143.854.254.948.744.86462.659.361.151.143.954.355.148.744.964.16

16、2.759.361.151.243.954.355.148.844.964.262.759.861.251.64454.355.248.944.964.262.859.961.351.84454.455.248.944.964.362.959.961.351.84454.455.249.14564.362.960.161.451.84454.655.449.14564.36360.161.451.84454.855.449.245.164.36360.161.4524455.155.549.245.164.463.160.161.45244.155.155.549.245.164.563.16

17、0.361.45244.155.155.549.545.164.563.260.361.852.144.155.155.749.645.164.563.260.461.852.144.155.255.749.645.264.563.360.461.952.144.255.255.749.945.264.563.460.462.152.344.255.355.949.945.264.563.560.462.152.344.355.655.95045.264.563.660.562.252.644.355.755.950.145.264.663.760.862.352.944.355.75650.

18、145.264.763.860.962.453.144.355.75650.145.264.963.960.962.753.144.355.756.150.145.3656460.962.853.144.355.956.150.245.565646162.953.244.355.956.150.245.565.1646162.953.244.455.956.150.345.565.164.16162.953.344.455.956.250.445.565.264.161.162.953.344.45656.350.545.565.364.261.16353.444.456.256.350.54

19、5.665.464.361.163.153.644.556.256.450.645.765.464.461.363.353.944.556.256.450.645.765.564.561.463.354.244.556.456.450.745.865.564.561.463.654.344.656.656.550.745.865.564.561.763.854.544.656.656.75145.965.764.661.963.954.744.756.6575145.965.864.7626454.744.756.657.551.245.96664.8626455.244.756.657.95

20、1.346666562.164.255.444.756.657.951.4466665.162.464.255.644.856.658.151.64666.265.162.564.356.144.856.758.151.746.166.365.162.864.456.144.856.758.151.746.266.365.362.964.456.244.856.758.152.146.366.365.463.164.556.344.956.858.152.246.366.465.563.164.656.444.956.858.152.246.366.565.563.164.956.644.95

21、6.958.352.546.366.565.963.264.956.744.956.958.352.546.466.66663.364.956.944.957.158.752.646.466.66663.4655744.957.158.852.946.466.66663.56557.14557.25953.146.466.66663.565.257.14557.25953.146.566.666.163.765.357.54557.359.153.146.566.766.163.865.357.64557.359.153.146.666.966.16465.357.945.257.459.15

22、3.446.666.966.164.165.45845.257.459.153.446.76766.164.165.458.145.257.559.253.646.76766.264.165.858.145.257.659.253.746.76766.464.165.858.245.457.659.353.846.767.166.464.165.858.445.557.759.353.846.867.166.464.365.958.545.657.759.75446.867.366.464.465.958.945.657.759.95446.967.366.664.566.158.945.65

23、7.959.954.24767.366.764.766.359.245.65860.154.34767.467.164.866.359.245.658.260.354.547.167.467.164.866.459.945.758.260.754.647.167.467.264.966.860.145.758.360.854.647.267.567.36566.860.145.758.460.854.647.267.667.465.166.960.245.858.460.954.947.367.667.565.166.960.445.858.66155.147.367.767.565.1676

24、0.745.958.661.355.547.368.167.665.267.160.74658.761.355.547.368.16865.267.261.1465961.455.547.468.168.165.367.361.246.15961.655.647.968.368.165.367.361.446.259.161.655.84868.468.165.467.461.546.359.161.855.84868.468.165.767.861.746.459.361.956.14868.468.165.867.961.946.459.462.156.24868.568.365.9686

25、1.946.559.562.256.348.268.668.46668.161.946.559.562.456.448.368.768.566.168.26246.559.962.556.648.469.268.566.468.36246.660.162.556.848.469.268.666.868.462.246.760.26357.148.469.468.766.968.662.24760.263.157.348.47068.866.968.862.347.160.463.157.348.670.26966.968.862.347.260.663.357.448.670.269.1676

26、8.862.647.260.863.457.448.770.269.167.168.962.847.260.963.657.448.870.469.267.26963.447.360.963.757.548.870.469.267.269.963.547.461.263.857.848.870.569.567.369.963.547.661.26458.548.970.669.667.369.963.747.761.364.158.648.97170.367.869.963.947.861.764.258.9497170.367.870.163.948.161.964.459.649.171.

27、170.567.870.464.248.161.964.559.849.271.270.567.970.464.448.362.26559.949.371.471.168.170.464.748.962.465.359.949.471.571.168.170.964.94962.465.56049.571.571.268.57165.549.162.565.560.149.671.671.268.771.265.750.162.765.960.249.671.771.568.871.365.850.362.866.160.549.971.972.168.971.366.350.463.266.

28、26149.972.172.168.971.466.450.963.366.861.150.472.272.469.171.867.25163.467.161.450.972.772.769.171.967.65163.567.261.751.973.472.969.172.368.251.464.467.362.153.373.473.770.272.468.95264.667.462.454.773.573.770.972.86952.165.567.863.154.874.17471.274.271.15366.66864.857.374.274.173.275.271.65367.16

29、8.86557.87576.475.177.67354.267.269.170.158.57877.575.178.477.9576869.270.26479.479.177.178.9Lep47.9842.8652.352.646.843.861.960.755.657.74Lep的算術(shù)平均值52.22五、結(jié)果分析 Lep的算術(shù)平均值是52.22，所以我們所測的該地區(qū)的噪聲評價(jià)量是55.22。小組成員：具體任務(wù)：6065556010#657050557075我們這組是在5160點(diǎn)測噪聲的，我們是在早上去的，因?yàn)橛袔讉€(gè)點(diǎn)在大操場上，早上沒有學(xué)生上課，但由于地方比較開闊，所以風(fēng)聲比較大。我們的噪

30、聲來源于風(fēng)聲的吹動(dòng)。而在寢室樓下和西門口的點(diǎn)，噪聲的來源就不一樣了，而且波動(dòng)很大，有學(xué)生來往的噪聲，車輛經(jīng)過所引發(fā)的噪聲等等。所以導(dǎo)致實(shí)驗(yàn)數(shù)據(jù)產(chǎn)生偏差。所以在寢室樓下的數(shù)據(jù)會(huì)比較大，而在西門的更大，而且他們的數(shù)據(jù)很不穩(wěn)定。噪聲源頻譜測定一、實(shí)訓(xùn)目的1.學(xué)會(huì)熟練頻譜儀的使用方法2.了解一般聲源噪聲、交通噪聲、工業(yè)噪聲的測量方法；3掌握噪聲連續(xù)監(jiān)測采樣與記錄的方法，通過對連續(xù)記錄的噪聲值進(jìn)行排序處理，掌握累計(jì)百分聲級Ln的概念4掌握聲音頻率的概念和頻譜分析方法。二、實(shí)訓(xùn)步驟每人兩個(gè)噪聲源，分別在8k，4k，2k，1k，500，250，125，63，31.5的狀況下進(jìn)行測量，每隔8秒記錄一個(gè)數(shù)據(jù)三、測量方法使用AWA6270型頻譜儀逐個(gè)進(jìn)行測量四、數(shù)據(jù)處理自來水聲HZ31.5631252505001000200040008000DB053.65963.861.9558.95456.961.3風(fēng)扇聲HZ31.5631252505001000200040008000DB05052.653.261.660.146.753.937.5手機(jī)鈴聲HZ31.5631252505001000200040008000DB049.253.9627981.565.670.174五、結(jié)果分析由于我們這組的