示波器波形分析Oscilloscope waveform analysis скачать в хорошем качестве

示波器波形分析Oscilloscope waveform analysis

示波器是一种用途十分广泛的电子测量仪器。它能把肉眼看不见的电信号变换成看得见的图像，便于人们研究各种电现象的变化过程。示波器利用狭窄的、由高速电子组成的电子束，打在涂有荧光物质的屏面上，就可产生细小的光点（这是传统的模拟示波器的工作原理）。在被测信号的作用下，电子束就好像一支笔的笔尖，可以在屏面上描绘出被测信号的瞬时值的变化曲线。利用示波器能观察各种不同信号幅度随时间变化的波形曲线，还可以用它测试各种不同的电量，如电压、电流、频率、相位差、调幅度等等。 Oscilloscope is a widely used electronic measuring instrument. It can transform invisible electrical signals into visible images, which is convenient for people to study the change process of various List of electrical phenomena. The oscilloscope utilizes a narrow, high-speed electron beam to strike a screen coated with fluorescent material, producing small light points (which is the working principle of traditional analog oscilloscopes). Under the action of the measured signal, the electron beam is like the tip of a pen, which can depict the instantaneous value change curve of the measured signal on the screen. The oscilloscope can be used to observe the waveform curves of various signal amplitudes over time, and can also be used to test various electrical quantities, such as voltage, current, frequency, phase difference, amplitude modulation, and so on.