一种改进的双路Fabry-Perot干涉式加速度计  

An Improvement of Accelerometer System of Two Optic Fibers Fabry-Perot Interferometer

作　　者：臧怀沛[1] 李志全[1] 赵彦涛[1] 汤敬[1] 许明妍[1] 

机构地区：[1]燕山大学仪器科学与工程系,河北秦皇岛066004

出　　处：《传感技术学报》2005年第2期374-376,共3页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金资助项目编号:60377002

摘　　要：采用双路F-P进行加速度测量,有很高的分辨率[1]。原有研究基础上,经过进一步研究发现,其测量结果的灵敏度和传感头中两个F-P干涉腔的腔长有关。从理论方面说明了,其灵敏度和两个F-P腔的腔长的关系,并且在原来传感头的基础上增加了微电压可调PZT,用于调节某一个FP谐振腔腔长,到达一合适值,以便其灵敏度最大。A system of two optical fibers F-P interferometer with high resolution to measure micro-acceleration had been installed. Based on that research the sensitivity of the system is found to rely on the length of the F-P cavities. The relation of the sensitivity of the length of the F-P cavity is derived, The adjusting length of the F-P resonator by PZT and micromodulate voltage to improving the sensitivity of the system.is presented.

关 键 词：光纤Fabry-Perot干涉 微加速度 差动 PZT调节 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]