1.示波器的组成与原理简述单踪示波器框图如图1所示。它应用广泛,是修理黑白、彩电常用仪器。它能将电信号转换成可在荧光屏幕上直接观视的波形。一般由示波管、X轴、Y轴放大器、扫描发生器、电源、控制面板及测试探头等几大部分组成。 (1)Y轴通道:该通道放大器可将被测信号电压放大到足够的幅度,当信号幅度达到标准时,加到示波器的垂直转换板上。该通道还带有衰减器,用来调节垂直幅度,保证显示波形 1. Oscilloscope composition and principle of a single trace oscilloscope block diagram shown in Figure 1. It is widely used, is to repair black and white, color TV commonly used equipment. It converts electrical signals into waveforms for direct viewing on a fluorescent screen. Generally consists of oscilloscope, X-axis, Y-axis amplifier, scan generator, power supply, control panel and test probe and other major components. (1) Y-axis channel: This channel amplifier amplifies the voltage of the signal under test to a sufficient amplitude. When the signal amplitude reaches the standard, it is added to the vertical converter board of the oscilloscope. The channel also comes with an attenuator, used to adjust the vertical amplitude, to ensure that the display waveform