光子晶体光纤压力传感器输出信号监测技术研究

The monitoring research of output signal in Photonic Crystal Fiber pressure sensor

光子晶体光纤压力传感器在各种压力环境监测中具有极其重要的作用.文章提出了光子晶体光纤压力传感器系统模型和输出信号检测方案,设计了一种用多片高速运放并联的方式来对PCF压力传感器输出电信号的放大,采用双极型定时器5G555新型整形电路对PCF压力传感器输出电信号进行有效的整形,为了满足PCF压力传感器对信号的相位和幅频特性以及计算工具的条件等多方面的因素,提出了一种用MAX293实现的无源BiQuad滤波电路对传感器输出电信号进行滤波.采用我们提出的放大、整形和滤波电路系统可以优良检测PCF压力传感器输出信号.

The Photonic crystal fiber pressure sensors are extremely important in environmental monitoring in a variety of pressure environment.The system model and the output signal detection scheme of photonic crystal fiber optic pressure sensor are proposed,and the output signal of the amplification is designed to the PCF pressure sensor by a multi-chip high-speed op amp with a parallel way.The output signals are effective shaping by using a new bipolar shaping circuit timer 5G555.In order to meet the PCF pressure sensor signal phase and amplitude-frequency characteristics and the conditions of computational tools and many other factors,the sensor output signal is filtered by a passive implementation using MAX293 BiQuad filter circuit.The proposed amplification,shaping and filtering circuit system can effectively detect PCF pressure sensor output signal.