交流谐振pb07013077 朱业俊!.docVIP免费

实验名称:交流谐振电路实验目的:研究RLC串并联电路的交流谐振现象,学习测量谐振曲线的方法,学习并掌握电路品质因素Q的测量方法与物理意义.实验原理:RLC交流电路由交流电源S，电阻R，电容C和电感L等组成交流电物理量的三角函数表述和复数表述式中的可以是电动势、电压、电流、阻抗等交流电物理量，为圆频率，为初始相角。电阻R、电容C和电感串联电路电路中的电流与电阻两端的电压是同相位的，但超前于电容C两端的电压，落后于电感两端的电压电阻阻抗的复数表达式为模电容阻抗的复数表达式为模电感阻抗的复数表达式为模电路总阻抗为三者的矢量和。电路总阻抗模的表达式为:电容阻抗与电路总阻抗方向相反，如果满足，1则电路总阻抗为R，达到最小值。这时电流最大，形成所谓“电流谐振”。试验记录试验仪器及规格ZX17-1交直流电阻器0.5WRX710型十进制电容箱50VAC电阻箱导线示波器RL=80欧姆数据记录及处理将实验数据填入下表并用计算电流R=4002测量点1920212223242526274.6134.7034.7504.8054.8644.8964.9595.045.101.72.12.32.52.83.03.02.72.30.0021250.0026250.0028750.0031250.0035000.0037500.0037500.0033750.00287528.98433329.5498229.8451330.19070530.56141330.76247531.15831531.66725332.0442453测量点1234567893.0193.1043.3063.5013.6943.8133.9003.9293.9980.30.3300.3800.440.5200.580.60.630.680.0003750.0004130.0004750.0005500.0006500.0007250.0007500.0007880.00085018.96893619.50300720.7722121.99743123.21008623.95778524.50442224.68663525.120174测量点1011121314151617184.0564.1344.1934.2514.3484.3984.4564.4904.5160.720.80.840.921.081.161.281.361.440.0009000.0010000.0010500.0011500.0013500.0014500.0016000.0017000.00180025.48459925.97468826.34539626.7098227.31928927.63344927.99787328.21150228.374864测量点2829303132333435365.145.195.255.305.345.425.515.606.022.11.91.71.481.41.201.040.920.60.0026250.0023750.0021250.0018500.0017500.0015000.0013000.0011500.00075032.29557232.60973132.98672233.30088233.55220934.05486434.6203535.18583737.824775测量点3738394041424344456.206.447.060.540.460.360.0006750.0005750.00045038.95574840.46371344.359288作出图像42030400.0000.0010.0020.0030.0043(10/)Rads/IA32.6810/Rads31:29.5810/ARads32:32.2610/BRadsm...