大学物理试验：电磁感应与磁悬浮试验报告

1、、电机频率与磁牵引力的关系1、实验测得数据电机频率（HZ）20000210002200023000240002500026000270002800029000300003100032000牵引力（N）0.6700.7020.7580.7700.8040.8430.8670.9140.9420.9701.0041.0401.077牵引力（N）0.6810.7120.7310.7760.7910.8450.8810.9100.9470.9791.0151.0381.075牵引力（N）0.6740.7160.7420.7640.8170.8320.8730.9040.9370.9710.9861.0

2、391.070牵引力均值0.6750.7100.7440.7700.8040.8400.8740.9090.9420.9731.0021.0391.0742、拟合函数LinearmodelPolyl:Rx)=pVi+p2Coeffidentswith95%confidencebounds):pl=3J1e-D5(3.26&e-O5F3.352e-O5)p2=0Q1282(0.001917,0.02373)GoodnessoFfitSSE;7,125e-05R-squre:0.9996AdjustedRyqumr自：0.9996RMSEQ的2545由MATLAB进行数据拟合得到电机频率与

3、牵引力符合以下函数：f(x)=3,31e-05*x+0,01282(95%置信度)3、拟合函数图像、电机频率与磁悬浮力的关系1、实验测得数据电机频率（HZ）20000210002200023000240002500026000270002800029000300003100032000悬浮力（N）0.0460.0560.0610.0660.0730.0800.0840.0920.0980.0980.1040.1110.118悬浮力（N）0.0450.0550.0620.0680.0740.0790.0830.0900.0970.0970.1050.1100.119悬浮力（N）0.0470.05

4、20.0600.0670.0720.0770.0850.0910.0980.0980.1030.1120.118悬浮力均值0.0460.0540.0610.0670.0730.0790.0840.0910.0980.0980.1040.1110.1182、拟合函数LinearmodelPoly!:f(x)=p1*x+p2Coeficients(with95%confidencebounds:pl=5736e-066.049e-06)p2±-0,06576(-0.07397,-0,05754)Goodnessoffit:&SE:4,042e-05R-sqjare:0.9923A

5、djiisledR-sqitare:0.5S27RMSE;0.001917由MATLAB进行数据拟合得到电机频率与牵引力符合以下函数:f(x)=5.736e-06*x-0,06576(95%置信度)3、拟合函数图像（1）磁牵引力随距离变化曲线1、实验测得数据距离（mm）0.81.62.43.24.04.8牵引力（N）0.6700.3190.2040.1090.0780.045牵引力（N）0.6810.3210.2010.1060.0780.046牵引力（N）0.6740.3180.1990.1050.0780.047牵引力均值0.6750.3190.2010.1070.0780.0462、数据

6、拟合函数GeneralmodelPoiver?:FOO=八b+cCoeffcientwith§5/caHidncebeurdej!a=0,6000(0.5417,0.8359)b=也断1*0610,546)c=-0,1516(6频001359Gcodressoffit：SEE0.0002963R-square：0.9989AdjustedR-square;0,9932RMSE:0.009938由MATLAB进行数据拟合得到电机频率与牵引力符合以下函数:f(x)=0.6908*xA-0.8036+-0.1516(95%置信度)3、拟合函数图像（2）磁悬浮力随距离变化曲线1、实验测得数据

7、距离（mm）0.81.62.43.24.04.8悬浮力（N）0.0430.0310.0220.0120.0070.004悬浮力（N）0.0420.0320.0210.0120.0080.004悬浮力（N）0.0440.0300.0210.0120.0080.004悬浮力均值0.0430.0310.0210.0120.0080.0042、实验数据拟合函数Generalmodelf伙)三百收八b+亡Coefficients(with95%corlidencebounds):尊=4W07药(4),3143h。/l"l)b=02204(-0-2726.0,713第c-0.1266(-0.10

8、1303548)Goodnessoffit;£5E：5.609e-06R-sqjare:0,995AdjuatedR-squarer0,9915RMSE:0.001367由MATLAB进行数据拟合得到电机频率与牵引力符合以下函数：f(x)=-0.08735*xA0.2204+0.1266(95%置信度)3、实验数据拟合函数图像四、电机频率与转速的关系1、实验测得数据电机频率（HZ）20000210002200023000240002500026000270002800029000300003100032000转速157165171181189197209219230238250259

9、267转速155163172180188198212218231239251258268转速156166171178190199208221228240250258269转速均值156.0164.7171.3179.7189.0198.0209.7219.3229.7239.0250.3258.3268.02、实验数据拟合函数LinearmodelPolyl:f(x)=p1*x+p2Co&ffieierrtsiwith93%confid&neeb&urd5)：p1二0.WS42(0.009252,0,009031)p2=-37,05(M546船25)Goodnessof

10、fit:SSE;34,81R-square:DJ979AdjustedR-square:0.9977RMSE:1.774由MATLAB进行数据拟合得到电机频率与牵引力符合以下函数:f(x)=0.009542*x+-37.85(95%置信度)3、实验数据拟合函数图像五、电机频率与发电电压的关系1、实验测得数据电机频率(HZ)20000210002200023000240002500026000270002800029000300003100032000电压(V)2.412.522.632.842.973.083.173.283.403.523.623.733.84电压(V)2.422.512.642.832.963.073.183.293.413.513.633.713.84电压(V)2.402.502.662.812.973.093.183.303.423.503.613.733.85电压均值2.412.512.642.832.973.083.183.293.413.513.623.723.842、实验数据拟合函数LinearmodelPtJyl:烟=pVx+Coefficients(with95%confidencebounds:pl=0.0001191(0.0001133r0.0001249)p2=0.05747(