用于光纤传感器研究的相位调制信号发生器

A phase modulated signal generator for optical fiber sensor's study

针对干涉型光纤传感信号不易产生,不易定量控制的问题,给出了一种基于单片机技术和类似于DMA技术的低成本相位调制信号发生器实现方案.并将实验结果与计算机的仿真结果进行了对比,结果显示出2种波形非常相似,说明了该方法的可行性和潜在优势.

A new scheme is developed in which the phase modulated signal generator is designed for optical fiber sensor, based on the single_chip computer and quasi_DMA technique,to resolve the problems of interference optical fiber sensor with which the signal is difficult to generate and control.The comparison of results from experiments and computer simulation show that the two kinds of wave froms are very similar,indicating the feasibility and superiority of this method.