摘要
对干涉型光纤传感器的ＰＧＣ检测方法作了详细的理论分析，确定了微分过程中所产生的时间延迟和用差分代替的微分差分时间是限制动态范围上限的重要因素，并考察了其它延迟时间和参数对被测信号幅度的影响，提出了扩大动态范围实现最佳输出的方案。
We present a theoretical analysis of PGC detection of interferometric fiber-optic sensor and demonstrate that the important factors which restrict the upper limit are time delay emerging in the course of differential and differenciating time emerging in the course of replacing differentialcircuit with differentiation technique,as well as the amplitude influence of the signal to be detected by other time delay and parameters.A scheme is proposed for expanding dynamic range and obtaining the optimal output.Experimental results from computer simulation is also given.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
1999年第2期58-64,共7页
Journal of Harbin Engineering University
