示波器X-Y模式在电子电路实验中的应用

X-Y Model of Oscilloscope in Electronic Circuit Experiment

示波器的X-Y模式是一个附加功能,常用来观察两个信号之间的相位关系,在二阶电路中多用来观察二阶网络状态轨迹。在传统的模拟电路实验中,很少用到示波器的X-Y模式。在实验研究过程中发现,利用X-Y模式显示原理来观察基本放大电路输入和输出电压之间的相位关系、观察波形发生何种失真、设置合适的静态工作点以及测量放大电路最大不失真输出电压,都优越于传统的实验方法。

X-Y model of oscilloscope is an added function, which is generally used to observe the relation of the phase of two signals. In second-order circuit, X-Y model can be used to observe the trace of the state of the second-order circuit. In traditional, the students hardly use the X-Y model in doing the analog electronic circuit experiment. In fact, the X-Y model is very useful in studying the magnify circuit experiment. This paper will tell you how to observe the relation of the output voltage and input voltage, what kind of distortion is occurring in the circuit, how to set up the proper quiescent point, and measure the max voltage of non-distortion.