应用RLC串联选频电路验证方波付里叶分解

Application of RLC series resonant circuit in verification of spuare wave

实验应用RLC串联选频电路对方波频谱进行分析,分别测量了方波分解的1、3、5倍频正弦波,通过对上述频率谐振电路中电感的损耗电阻测量,计算修正了1、3、5次谐波的振幅,从实验上验证了方波的付里叶分解。

The experiment was made to analyze square wavw spectrum by using RLC series resonant circuit, and to respectively measure the 1,3,and 5 times frequency sine wavein square wave analysis. By measuring the loss resistance of inductance in the above frequency resonant circuit,the 1, 3,and 5 times resonant wave＇s amplitudes are adjusted and Fourier analysis of square wave is verufued by the experiment.