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采用单光纤同时检测和通信虽然不是一个新概念,但对这项实验工作的报道却甚少。近几年,仅报道过单模拟音频和模域抖动检测的初步研究。本文介绍在单多模光纤上同时进行高数据率数字光学通信和线性位移检测的研究工作。数据传输包含各种标准通信速度的伪随机码序列。测出数据流误码率的变化,就可以确定简单同轴光纤位移传感器的位置。给出静态位移和动态位移的实验结果和系统结构。最后,介绍测定同轴传感器位置所采用的通信测距技术。
Although it is not a new concept to use single optical fiber for simultaneous detection and communication, there are few reports on this experimental work. In recent years, only preliminary studies on single-mode audio and modal jitter detection have been reported. This article describes the work on simultaneous high-data-rate digital optical communication and linear displacement detection on single multimode fiber. Data transmission contains a variety of standard communication speed pseudo-random code sequence. Measured data stream bit error rate changes, you can determine the simple coaxial fiber displacement sensor position. The experimental results and system structure of static displacement and dynamic displacement are given. Finally, we introduce the technology of communication distance measurement for measuring the position of coaxial sensor.