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PB06210013张弢-铁磁共振.doc
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PB06210013 磁共振
实验报告 姓名:张弢 学号:PB06210013 系别:0611 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: 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: n123456平均查波长表得频率试验前2.9722.9742.9732.9702.9752.9742.9738994.4试验后2.9752.9742.9732.9762.9772.9752.9758994 二者求平均得谐振频率 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(升) 磁感应强度(升)B/mT 输出电流(降) 磁感应强度(降)B/mT050.83.152.13.50.0550.811.852190.150.820.252260.1550.82952330.250.837.551.9420.2550.84651.8550.350.855.551.9620.3550.86451.3720.450.872.851.1800.4550.881.951.1900.550.990.951.199.90.5550.998.851.21060.650.910651.31150.655111551.31220.751.112551.31380.7551.113551.31400.851.114551.31500.8551.215051.51590.951.315951.61660.9551.417551.6177151.5175.251.61821.0551.518451.51911.151.519451.32001.1551.520151.52101.251.521051.6219.91.2551.5217.551.82271.351.622652.32361.3551.623552.82411.451.6242.552.82511.4551.725151.82601.551.726152.32701.5551.827552.82791.651.928152.92831.655229153.22921.6652.1292.853.2293.81.6752.1294.653.2295.61.6852.2296.453.1297.41.6952.1298.253.1299.21.75230052.63011.7151.530252.1302.81.725130451.2304.61.7350.830650.3306.41.7450.430848.8308.21.7549.831045.33101.7648.831244.13121.7747.231442.33141.7845.331640.83161.7943.731838.13181.840.132033.53201.8137.5320.430.3

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