摘要
通过对变化的李萨如图形的研究 ,给出了图形周期性变化的变化频率与输入信号频率之间的定量关系 ,推导出了利用李萨如图形测量交流信号频率测频公式的修正公式 ,并通过实验验证了修正公式的正确性。
The relations between the frequency of Lissajous figure and that of input signal are given by theoretical calculation. The formulae of measuring the frequency of an alternating signal through Lissajous figures are revised. The revised formulae are more precise. An experiment is conceived and carried out to prove these formulae.
出处
《洛阳工学院学报》
2001年第1期82-84,共3页
Journal of Luoyang Institute of Technology
