光纤语音传输实验系统的研究

Research of Fiber-optic Phonetic Transmission Experiment System

提出了一种适用于教学的光纤传感器实验研究系统 ,介绍了光纤语音传输实验系统的基本组成和锁相环调制解调的原理 ,详细说明了光纤在语音传输系统中的应用及其特性。该实验系统包含了光纤传感器绝大多数环节的原理及应用 ,有助于学生理解和掌握光纤传感器在原理和结构等方面的知识 ,增强学生将光纤传感器系统应用于工程实际的能力 ,在教学实践中获得了较好的效果。对传输系统进行了实验研究 ,证明了系统设计的正确性。

An experiment system suitable for teaching is presented. The basic constitution of the fiber-optic phonetic transmission system is introduced. The working principle of PLL which is used in the frequency modulation and demodulation is described and the peculiarity and application of the fiber-optic in the system is discussed. This system is helpful for students to understand the principle and use it in engineering,which includes most parts of principles and applications of fiber-optic sensor. The correctness of design has been proved by the result of experiment.