首页 | 本学科首页   官方微博 | 高级检索  
     检索      

三分量全光纤加速度检波器及数字处理系统
引用本文:严志刚,丁桂兰,陈才和,崔宇明.三分量全光纤加速度检波器及数字处理系统[J].光学学报,2003,23(12):413-1417.
作者姓名:严志刚  丁桂兰  陈才和  崔宇明
作者单位: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
基金项目:国家自然科学基金 (499740 10 )资助课题
摘    要:研制出三分量全光纤加速度检波器及其数字信号处理系统。该检波器由一个质量块,六个顺变柱体,三组迈克耳孙干涉仪光路组成。顺变柱体是检波器敏感元件中的关键部件。该检波器数字信号处理系统以TI公司的高性能数字信号处理芯片为核心,辅以必要的电路,实现了对加速度信号的高精度检测和误差信号的补偿。测试结果表明,检波器在共振频率以上有较好的频率响应,输入信号与输出信号吻合较好;检波器在共振频率以下亦有较好的频率响应。最后给出了检波器频率响应曲线。

关 键 词:全光纤加速度检波器  数字信号处理系统  迈克耳孙干涉仪  共振频率  频率响应  信号补偿
收稿时间:2002/10/17

Three-Component All-Fiber Acceleration Seismometer and Digital Processing System
Yan ZhigangDing GuilanChen CaiheCui Yuming.Three-Component All-Fiber Acceleration Seismometer and Digital Processing System[J].Acta Optica Sinica,2003,23(12):413-1417.
Authors:Yan ZhigangDing GuilanChen CaiheCui Yuming
Abstract:Three-component all-fiber acceleration seismometer and its digital signal processing (DSP) system are developed. The seismometer is composed of a seismic mass, six cylinders and three sets of Michelson interferometer light path. The six cylinders are critical parts among the sensor elements. An advanced quality digital signal processing (DSP) chip equipped with necessary circuits has been used in its digital signal processing system, a high accurate detection of the acceleration signal has been achieved and the environmental interference signal has been effectively compensated. Test results indicate that the accelerometer has better frequency response above the resonant frequency, and the output signal is in correspondence with the input signal. The accelerometer also has better frequency response under the resonant frequency. At last, the curve of seismometer frequency response is given.
Keywords:guided wave and fiber optics  three-component all-fiberoptic acceleration seismometer  michelson interferometer  digital signal processing  resonant frequency  frequency response
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号