实验报告姓名：崔泽汉学号：PB05210079系别：05006实验题目：铁磁共振实验目的：学习使用传输式谐振腔法研究铁磁共振现象，测量YIG小球（多晶）的共振线宽和g因子。实验内容：1.测量谐振频率调节微波发生器，使谐振腔与发生器输出信号调谐，利用仪器的波长表测出谐振频率f。测得六组数据为：123456刻度值3.1953.1923.1953.1923.1923.193求平均值为3.193，查波长表为3490003.1973.192并利用线性插入法得谐振频率为2.测I-B曲线用非逐点法调谐测出检波电流I随B的变化曲线。实验数据如下：励磁电流输出电流（up）磁感应强度B/mT（up）输出电流（dowm）磁感应强度B/mT（dowm）励磁电流输出电流（up）磁感应强度B/mT（up）输出电流（dowm）磁感应强度B/mT（dowm）0047.5050.11.56259.642.8262.842.80.05847.5850.11.58260.842266.441.80.11947.52050.11.62624127040.80.152247.53050.21.622664027439.40.237484050.21.6427039.2278380.2541484850.21.66273.637.928136.80.35048.35950.51.68276.836.228334.20.356048.862511.728034.828531.80.470497251.51.72283.232.2287.8300.457949.280521.74286.430.4290.627.50.58249.590521.7629028293.625.50.559249.8100521.7829426297.824.60.610049.8108521.829824.530025.50.6511049.8118521.82299.624.5304280.712049.812251.81.84301.225.830832.20.7512849.8132521.8630429.5312370.813849.514051.81.8830833.631641.50.8514249.515051.61.93123932045.20.915149.215951.41.92315.242.932248.20.9516049.2162511.94318.44632450.511694917250.81.9632248.9327521.051794918050.51.983265133153.61.118248.818850.2233052.133554.51.1519248.5199502.0533854.534155.91.22004820249.62.134255.535056.21.252094821849.22.153525636056.61.322047.222148.62.23605636556.61.3522346.5232482.253685637256.41.423245.9240472.33785638056.41.4524045.2242462.353825638656.41.525044.1255452.439055.839856.41.52253.643.8257.444.22.4539955.8400561.54257.243.2259.843.52.540255.840655.8（1）电流由小变大时的I-B曲线如下：第一条直线是取两侧最大值的平均值，第二条直线是半电流值处，第三条直线是最小值处；图中三点的坐标是半电流值和最小值对应的坐标。则由图知由公式,可得，代入数据得，（2）电流由大变小时的I-B曲线如下：第一条直线是取两侧最大值的平均值，第二条直线是半电流值处，第三条直线是...
