摘要
介绍了一种制作在光纤端头的超微型Fizeau腔水下激波压力传感器,给出了传感器的基本理论和制作工艺;采用被动零差解调技术对该光纤Fizeau腔在冲击压力波作用下的瞬态速变干涉相位进行解调;采用活塞式压力计和聚焦式电磁冲击波源进行静态和动态定标实验。在0～60 MPa压力量程范围内,系统的定标结果如下:满量程时的线性度、重复性、回程误差和基本误差分别为3.26%、0.01153%、0.07%和3.407%,动态响应时间小于0.75μs。
A miniature underwater shock wave pressure sensor based on optical fiber Fizeau cavity is described. The basic theory and fabrication process of this sensor are given. This transient interference phase of the Fizeau cavity acted by shock pressure wave is demodulated by using passive homodyne demodulation technique. A static calibration test and a dynamic calibration test are conducted using a piston-type pressure calibration machine and a focusing-type electro-magnetic shock wave source. The results indicate that the linearity, repeatability, hysteresis, and intrinsic error of the sensor within the full pressure range of 0-60 MPa are 3.26%, 0.01153%, 0.07%, and 3.407%, respectively. The dynamic response time is less than 0.75 μs.
作者
王俊杰
刘劲
傅正义
褚程雷
杨明红
Wang Junjie;Liu Jing;Fu Zhengyi;Chu Chenglei;Yang Minghong(State Engineering Laboratory for Optical Fiber Sensing Technology,Wuhan University of Technology,Wuhan,Hubei 430070,China;State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan,Hubei 430070,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2019年第2期222-230,共9页
Acta Optica Sinica
基金
国家重点研发计划重点专项(2017YFB0405501)
武汉理工大学材料复合新技术国家重点实验室重点开放基金(2016-KF-3)
关键词
传感器
光纤压力传感器
光纤Fizeau腔
高频响动态压力
超微型压力探针
sensors
optical fiber pressure sensor
optical fiber Fizeau cavity
high frequency response dynamic pressure
miniature pressure probe
