基于光弹效应的三分量光弹光纤地震加速度传感器

英文篇名：Three-Component Photoelastic Fiber Optic Accelerometer Based on the Photoelastic Effect
中文刊名：传感技术学报
英文刊名：Chinese Journal of Sensors and Actuators
作者：王金海 ; 陈才和 ; 唐东林 ; 张诚 ; 崔宇明
英文作者：WANG Jin-hai 1 ; 2 ; CHEN Cai-he1 ; TANG Dong-lin1 ; ZHANG Cheng2 ; CUI Yu-ming1 1.College of Precision Instrument and Optic-electronics Engineering ; Key Laboratory of Optic-electronics Information Technical Science of EMC ; Tianjin University ; Tianjin 300072 ; China ; 2.College of Information and Communication Engineering ; Tianjin Polytechnic University ; Tianjin 300160 ; China
中文关键词：三分量 ; 光弹效应 ; 加速度传感器 ; 横向谐振 ; 灵敏度
英文关键词：three-component ; photoelastic effect ; accelerometer ; transverse resonance ; sensitivity
出版日期：2006-03-30
机构：天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室,天津工业大学信息与通信工程学院,天津300160,天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,天津工业大学信息与通信工程学院,天津大学精密仪器与光电子工程学院,光电信息技术科学教育部重点实验室,,天津300072,天津300072,天津300072,天津300160,天津300072
年：2006
期：03
出版单位：传感技术学报

摘要

为满足强电磁场环境下的高精度三维地震勘探的需求,研制了一种高精度三分量光弹光纤加速度地震传感器,该传感器具有线性度好、抗横向谐振的特点。利用光弹原理,设计出三轴光弹敏感系统,可高精度检测加速度的三个轴向分量。采用双弹簧弹性系统,有效地提高了加速度传感器的抗横向谐振特性,且线性度好。该传感器的主要参数共振频率为3500Hz,横向灵敏度系数为0.11%,主轴相位灵敏度为3.7×10-3rad/m·s-2。
In order to provide a high accuracy three-component accelerometer for seismic exploration in the high electro-magnetic area, a novel three-component photoelastic fiber optic accelerometer with good linearity and high transverse resonance is designed. Based on the photoelastic effect, three-axis photoelastic sensing systems are designed to measure the three-orthogonal components of acceleration. Dual-spring system in the accelerometer increases the linearity and transverse resonance of the accelerometer. The main design parameters of the accelerometer are as following: natural frequency: 3 500 Hz; transverse sensitivity ratio: 0.11%; on-axis phase detection sensitivity: 3.7×10 -3 (rad/m·s -2 ).

引文

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