UC知道毕业设计英文摘要（帮忙翻译，谢谢~）
来源：百度知道 编辑：UC知道 时间：2024/05/06 03:13:51
摘要
模拟电路要正常工作需要在正常的频率范围内，过高或者过低的频率都会造成输出波形的失真，使模拟电路不能正常工作，因此测量模拟电路的频带宽度具有一定的现实意义。
本文主要介绍了模拟电路上限截止频率和下限截止频率的概念，测量原理，测量方法。同时对所用到的测量工具如示波器和数字毫伏表的原理，结构和使用方法进行了详细的说明。
本电路首先在输出波形不失真的情况下通过测量输入电压和输出电压从而测出模拟电路的放大倍数，然后通过调节交流电压源的频率使得输出增益减少3db从而测量出模拟电路的上限截止频率，即可求出通频带。
本方法有设计简单，步骤简洁，容易掌握等特点，有一定的实用价值。
关键词：交流电压源 双踪示波器 交流毫伏表 上限截止频率
Analog circuits of the automatic measurement bandwidth
Abstract
Analog circuits to the normal work of the normal frequency range, the frequency is too high or too low will cause the distortion output waveform, so that analog circuits do not work, so measuring the bandwidth of analog circuits with a certain degree of practical significance.
This paper describes the upper limit cut-off frequency analog circuits and the concept of the minimum cut-off frequency, the measurement principle, measurement method. At the same time, the use of measuring tools such as oscilloscopes and digital millivolt meter principle, structure and use of a detailed description.
First of all, the circuit output waveform in the case of losing it by measuring the input voltage and output voltage in order to detect amplification of analog circuits, and then by adjusting the frequency of AC voltage source to reduce the output gain make 3db analog circuits in ord