数据记录与处理.doc

〖数据记录与处理〗 绘出样品的磁滞回线，基本磁化曲线，及曲线，并从相应的曲线上读取饱和磁感应强度，饱和磁场强度，剩磁和矫顽力等相关物理量。 表1初始磁化曲线相关数据记录处理表 I/mA B/mT H/ 0.0 0 0 20.0 4.1 140.6506 40.0 8.6 278.6265 60.0 14.5 407.2405 80.0 20.6 534.5172 100.0 27.8 654.4382 150.0 51.6 915.4563 200.0 80.3 1143.708 250.0 110.5 1361.93 300.0 140.4 1582.157 350.0 168.7 1813.084 400.0 195.2 2056.047 450.0 218.4 2321.077 500.0 238.4 2607.506 550.0 254.9 2917.339 600.0 270.1 3235.865 根据式（4） 又N=2000匝 及表1可计算出H，然后填入上表1中。初始磁化曲线如下图所示。 表2磁滞回线相关数据记录处理表 I/mA B/mT H/Am-1 600.0 273.4 3213.798 550.0 269 2823.053 500.0 264 2436.319 450.0 258 2056.273 400.0 251 1682.914 350.0 242.1 1322.26 300.0 229.2 988.3538 250.0 214.9 663.8095 200.0 194.2 382.0618 150.0 168.5 133.7489 100.0 138.6 -86.4786 80.0 125 -163.603 60.0 112.1 -245.408 40.0 98.3 -321.195 20.0 84.6 -397.651 0.0 70.7 -472.769 -20.0 56.4 -545.213 -40.0 42.2 -618.325 -60.0 28.5 -694.78 -80.0 14.3 -767.893 -100.0 0 -840.336 -150.0 -35.3 -1024.45 -200.0 -70.2 -1211.25 -250.0 -104.1 -1404.73 -300.0 -137.3 -1602.89 -350.0 -168.4 -1815.09 -400.0 -196.8 -2045.35 -450.0 -221.4 -2301.02 -500.0 -242 -2583.43 -550.0 -258.6 -2892.6 -600.0 -271.6 -3225.83 -550.0 -267 -2836.43 -500.0 -262 -2449.69 -450.0 -256.6 -2065.63 -400.0 -249.8 -1690.94 -350.0 -240.7 -1331.62 -300.0 -229.4 -987.016 -250.0 -214.4 -667.153 -200.0 -194.4 -380.724 -150.0 -169.5 -127.062 -100.0 -139.5 92.49685 -80.0 -126.8 175.6395 -60.0 -113.9 257.4447 -40.0 -86.3 240.9515 -20.0 -76.4 342.8176 0.0 -72.5 484.8057 20.0 -36.7 413.4792 40.0 -32.9 556.1359 60.0 -28.2 692.7744 80.0 -15.1 773.2422 100.0 -1.7 851.704 100.6 0 845.3782 150.0 33.1 1039.165 200.0 67.3 1230.639 250.0 101.6 1421.444 300.0 134.1 1624.285 350.0 165 1837.826 400.0 193.7 2066.078 450.0 217.3 2328.433 500.0 237.5 2613.524 550.0 253.6 2926.032 600.0 266.8 3257.932 根据式（4） 又N=2000匝 及表2可计算出H，然后填入上表2中。 表3 基本磁化曲线与磁导率数据记录表 I/mA B/mT H/Am-1 0.0 0 0 20.0 3.8 142.6567 0.026637 40.0 8.5 279.2952