粒徑分布實驗

1、實驗原始數(shù)據(jù)記錄：1放大倍數(shù)為100的顯微鏡中目鏡刻度尺每格所代表的長度為10M m.2將粉塵粒子投影徑大小的測定結(jié)果列于表一中。表一粉塵粒徑大小原始記錄表序 號123456789101112131415161 718192 0格數(shù)3411.51.512.51.53314133.522.51.513.5M m7.5102.53.753.752.56.253.757.57.52.5102.57.58.7556.253.752.58.75序 號2122232425262728293031323334353637383940格數(shù)212.51.5221111.552321.521.510.53M m5

2、2.56.253.75552.52.52.53.7512.557.553.7553.752.51.257.5序 號4 142434445464748495051525354555657585960格數(shù)211.51.54221.534120.511211.521M m52.53.753.7510553.757.5102.551.252.52.552.53.7552.5序 號6162636465666768697071727374757677787980格數(shù)1.5321213220.511.5122.522341M m3.757.552.552.57.5551.252.53.752.556.255

3、57.5102.5序 號81828384858687888990919293949596979899100格數(shù)10.52212.52222232.5110.51121M m2.51.25552.56.25555557.56.252.52.51.252.52.552.5序 號101102103104105106107108109110111112113114115116117118119120格數(shù)3223111.51.52233.5232.52231.52M7.557.2.2.3.3.557.8.57.6.557.3.5m55557757525755555序1111111111111111111

4、1號2222222223333333333412345678901234567890格21.1.223222.3.31.2233.2211.數(shù)5555555M53.3.557.556.8.7.3.557.8.552.3.m775275757575555555序11111111111111111111號4444444445555555555612345678901234567890格2223.1.22.3222.2.2211.2332數(shù)555555M5558.3.56.7.556.6.552.3.57.7.5m7725225755555555序11111111111111111111號66666

5、66667777777777812345678901234567890格22.32.2221.23222.3411.33.2數(shù)555555M56.7.6.5553.57.556.7.12.3.7.8.5m252752505757555555序11111111111111111112號8888888889999999999012345678901234567890格2.10.41122.33222.311.2421.數(shù)555555M6.2.1.12.2.56.7.7.556.7.2.3.5153.m252055255255707555555（二）實驗數(shù)據(jù)的處理根據(jù)實驗的粉塵粒直徑分布的計算方法將

6、數(shù)據(jù)整理成表二根據(jù)表二整理的數(shù)據(jù)畫出粒徑分布的直方圖，頻數(shù)曲線及累計頻率曲線 按教材中的計算方法得出粉塵的特征數(shù)，整理成表三。表二粉塵粒徑分布表組序粒徑范圍(p m)組中數(shù)頻數(shù)n相對頻 度()頻度 (%)篩上累計分布(%)篩下累計分布(%)10 1.250.625632.4100021.25 2.51.8753718.514.897332.5 3.753.1252713.510.878.521.543.75 54.375683427.2653555 6.255.625178.56.8316966.25 7.56.8752914.511.622.577.577.5 8.758.12573.52.889288.75 109.375843.2496910 11.2510.630004961011.25 12,511.8810.50.4397表三粉塵的特征數(shù)特征數(shù)種類表征粉塵集中趨勢的特征數(shù)表征粉塵離中趨勢的特征數(shù)算術(shù)平均徑中位徑眾徑幾何平均徑極差標(biāo)準(zhǔn)差特征數(shù)大 小5.09p