实验报告85PB07001095蔡嘉铖数学系08.11.23【实验题目】磁阻效应及磁阻传感器的特性研究【数据处理】1.B<0.06T原始数据为电流Is=1mA电磁铁InSbB~△R/R（0）对应关系IM/mAUR/VB/mTR/Ω△R/R（0）161.710106.250.032258313.420109.67740.043478465.130110.86960.064609616.940113.11480.065015768.650113.15790.0652889110.360113.18680.0654831061270113.20750.0745112013.780114.16670.76470613625.590187.50.07921615017.2100114.66670.07807516518.9110114.54550.07712418020.6120114.44440.07082819622.3130113.77550.08011221024.1140114.76190.0744422625.8150114.15930.07843124027.5160114.58330.07773925529.2170114.50980.07712427030.9180114.44440.032258可得到：以△R/R（0）为纵坐标，其余四项分别为横坐标做曲线拟合有：△R/R（0）iBi△R/R（0）i×Bi（△R/R（0）i）2Bi2000000.003573100.035731.28E-051000.008486200.169727.2E-054000.020098300.602940.0004049000.03573401.42920.00127716000.055382502.76910.00306725000.078607604.716420.0061793600△R/R（0）---Bi△R/R（0）---△R/R（0）i×Bi△R/R（0）---（△R/R（0）i）2△R/R（0）---Bi2请分别给出每张图的图示名称，以便能明了每张图都代表什么可知由上面拟合可知在B<0.06T时磁阻变化率ΔR/R（0）与磁感应强度B大概成二次函数关系：△R/R（0）=0.0005+0.00002Bi2而以y=a+b*x^c拟合有ΔR/R（0）=0.00033+0.00002B1.95726由上面拟合可知在B<0.06T时磁阻变化率ΔR/R（0）与磁感应强度B大概成二次函数关系；2.0.06T0.12T原始数据为电磁铁InSbB~△R/R（0）对应关系IM/mAUR/mVB/mTR/Ω△R/R（0）186288.4120288.40.288075202298.5130298.50.333184217309.3140309.30.38142232320.6150320.60.431889247332.4160332.40.484591262344.7170344.70.539527277357.4180357.40.596248可得到以△R/R（0）为纵坐标，其余四项分别为横坐标做曲线拟合有：△R/R（0）iBi△R/R（0）i×Bi（△R/R（0）i）2Bi20.2880751203...
