物理实验报告__磁滞回线的作图.pdf

数据处理 表一1初始磁化曲线数据表 有公式：i l n h = b/mt0.10.61.22.73.85.26.78.29.6 i/ma1.15.010.222.030.139.950.760.770.1 h/a/m9.1341.5084.66182.60249.83331.17420.81503.81581.83 b/mt11.413.215.023.232.641.654.469.886.9 i/ma81.091.1100.2130.4162.2190.9231.4281.1335.1 h/a/m672.30756.13831.661082.321346.261584.471920.622333.132781.33 b/mt103.0120.5138.5154.6172.71 i/ma381.7432.2486.1538.0600.8 h/a/m3168.113587.264034.634465.404986.64 由上图可以看出初始曲线过零点，说明当铁磁性材料中不存在磁化场时，h，b 均为0，所以由曲线可知，b 与 h 不是线 性关系。开始 b 随h 增加较快，最终b 随 h 增加十分缓慢，到达磁性饱和状态 表2磁滞回线数据表 b/mt172.7168.2163.1158.0151.3143.8134.7124.8112.7 i/ma 600.8548.9498.4452.3400.5350.4298.5250.2198.2 h/a/m4986.644555.874136.723754.093324.152908.322477.552076.661645.06 b/mt99.884.875.063.550.335.722.35.4-0.6 i/ma 150.099.769.936.50.0-38.2-72.4-114.6-129.0 h/a/m1245.00827.5580.17302.950.00-317.0-600.92-915.18-1070.7 b/mt-9.6-31.5-47.6-69.3-88.4-102.1-118.6-129.6-146.5 i/ma-151.9-206.2-246.9-302.1-352.4-390.4-437.4-470.6-523.3 h/a/m-1260.77-1711.46-2049.27-2507.43-2924.92-3240.32-3630.42-3905.98-4343.39 b/mt -157.3-165.0-169.5-177.0-173.7-169.7-165.2-158.8-151.5 i/ma-558.4-584.4-600.4-616.5-580.4-537.3-494.8-437.5-387.1 h/a/m-4634.72-4850.52-4983.32-5116.95-4817.32-4459.59-4106.84-3631.25-3212.93 b/mt-141.5-126.0-106.5-93.1-81.5-73.2-63.6-49.1-43.7 i/ma-327.3-253.0-174.6-128.9-92.0-67.3-39.90.014.0 h/a/m -2716.59-2099.90-1449.18-1069.87-763.60-558.59-331.170.00116.20 b/mt-27.5-5.86.726.542.257.272.192.9114.4 i/ma55.8109.3140.7189.1228.1265.9303.7357.8416.6 h/a/m463.14907.191167.811569.531893.232206.972520.712969.743457.78 b/mt129.8138.8151.4165.1172.4 i/ma461.5498.0529.2576.1601.8 h/a/m 3830.454133.404392.364781.634994.94 图二 磁滞回线 -200 -150 -100 -50 0 50 100 150 200 -6000-4000-20000200040006000 h/a/m b/mt b/mt 表三基本磁化曲线数据表 b/mt0.03.98.217.128.039.459.476.395.5114.3 i/ma0.031.960.1104.8157.0197.7257.2306.2360.0413.5 h/a/m0.0264.77498.83869.841303.101640.912134.762541.462988.003432.05 b/mt 128.8144.6158.8172.8 i/ma456.0504