物理实验报告-磁滞回线的作图

[数据处理]表一1初始磁化曲线数据表有公式：B/mT0.10.61.22.73.85.26.78.29.6I/mA1.15.010.222.030.139.950.760.770.1H/A/m9.1341.5084.66182.60249.83331.17420.81503.81581.83B/mT11.413.215.023.232.641.654.469.886.9I/mA81.091.1100.2130.4162.2190.9231.4281.1335.1H/A/m672.30756.13831.661082.321346.261584.471920.622333.132781.33B/mT103.0120.5138.5154.6172.71I/mA381.7432.2486.1538.0600.8H/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3磁滞回线数据表B/mT172.7168.2163.1158.0151.3143.8134.7124.8112.7H/A/m4986.644555.874136.723754.093324.152908.322477.552076.661645.06B/mT99.884.875.063.550.335.722.35.4-0.6H/A/m1245.00827.5580.17302.950.00-317.0-600.92-915.18-1070.7B/mT-9.6-31.5-47.6-69.3-88.4-102.1-118.6-129.6-146.5H/A/m-1260.77-1711.46-2049.27-2507.43-2924.92-3240.32-3630.42-3905.98-4343.39B/mT-157.3-165.0-169.5-177.0-173.7-169.7-165.2-158.8-151.5H/A/m-4634.72-4850.52-4983.32-5116.95-4817.32-4459.59-4106.84-3631.25-3212.93B/mT-141.5-126.0-106.5-93.1-81.5-73.2-63.6-49.1-43.7H/A/m-2716.59-2099.90-1449.18-1069.87-763.60-558.59-331.170.00116.20B/mT-27.5-5.86.726.542.257.272.192.9114.4H/A/m463.14907.191167.811569.531893.232206.972520.712969.743457.78B/mT129.8138.8151.4165.1172.4H/A/m3830.454133.404392.364781.634994.94表三基本磁化曲线数据表B/mT0.03.98.217.128.039.459.476.395.5114.3H/A/m0.0264.77498.83869.841303.101640.912134.762541.4