CN103954348B - 基于差分脉冲序列的分布式光纤振动传感系统 - Google Patents
基于差分脉冲序列的分布式光纤振动传感系统 Download PDFInfo
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CN104457960B (zh) * | 2014-12-11 | 2017-05-24 | 中国科学院半导体研究所 | 一种基于相干接收技术的分布式光纤传感系统 |
CN104457962B (zh) * | 2014-12-25 | 2017-04-12 | 上海远洲管业科技股份有限公司 | 一种超长距离分布式光纤震动传感监测系统 |
CN104568119A (zh) * | 2015-01-14 | 2015-04-29 | 天津大学 | 一种单光源脉冲编码的光纤振动传感系统及其传感方法 |
CN104568120B (zh) * | 2015-01-14 | 2017-11-28 | 天津大学 | 一种复合原理光纤传感系统和传感方法 |
CN105141365B (zh) * | 2015-06-11 | 2017-12-19 | 北京邮电大学 | 一种获取光纤链路时延抖动的装置及方法 |
CN105547459A (zh) * | 2016-01-18 | 2016-05-04 | 重庆大学 | 分布式光纤振动传感系统采样控制方法 |
CN107976248B (zh) * | 2016-10-25 | 2019-09-13 | 北京大学 | 能够实现全相位解调的分布式光纤传感系统及其测量方法 |
CN106323448B (zh) * | 2016-11-23 | 2019-12-03 | 重庆大学 | 基于随机采样的高频振动分布式光纤传感系统 |
CN107894276A (zh) * | 2017-12-08 | 2018-04-10 | 威海北洋光电信息技术股份公司 | 一种高频响的分布式光纤振动传感装置和实现方法 |
CN110657879B (zh) * | 2019-09-23 | 2021-06-11 | 郑州信大先进技术研究院 | 一种基于fft的分布式光纤振动传感定位方法及装置 |
CN111207821B (zh) * | 2020-01-19 | 2022-05-17 | 国兴汇金(深圳)科技有限公司 | 一种可调标距长度的光纤分布式振动传感系统 |
CN111577386A (zh) * | 2020-06-11 | 2020-08-25 | 中铁第四勘察设计院集团有限公司 | 一种基于声音识别的隧道防护门状态监测系统 |
CN113175988B (zh) * | 2021-04-13 | 2022-04-19 | 太原理工大学 | 一种抗噪声及断点自诊断的分布式光纤声音传感装置 |
CN113418539B (zh) * | 2021-06-21 | 2022-03-25 | 南京大学 | 具有自由多空间分辨率的自外差式的φ-OTDR系统 |
CN114111860B (zh) * | 2021-12-03 | 2022-08-30 | 北京科技大学 | 基于多频脉冲编码的分布式φ-otdr传感方法及系统 |
CN116772908A (zh) * | 2021-12-28 | 2023-09-19 | 西安和其光电科技股份有限公司 | 一种应用于分布式光纤声波传感系统的信号数据处理方法 |
CN114353931A (zh) * | 2022-01-12 | 2022-04-15 | 中国人民解放军国防科技大学 | 一种大动态范围的光纤干涉仪相位检测装置及方法 |
CN114459593B (zh) * | 2022-01-25 | 2024-01-30 | 北京信维科技股份有限公司 | 一种提高光纤振动系统探测距离的方法 |
CN116073900B (zh) * | 2023-03-28 | 2023-08-11 | 中山大学 | 一种分布式光纤声波传感系统及盲区消除检测方法 |
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US4898468A (en) * | 1988-06-20 | 1990-02-06 | Mcdonnell Douglas Corporation | Sagnac distributed sensor |
CN101000267A (zh) * | 2006-12-25 | 2007-07-18 | 福建迅捷光电科技有限公司 | 全并行分布式光纤光栅温度传感方法及其系统 |
CN102865914B (zh) * | 2012-09-19 | 2013-12-18 | 朱涛 | 分布式光纤振动传感器 |
CN102967358B (zh) * | 2012-12-13 | 2014-12-24 | 重庆大学 | 时分复用的分布式光纤振动传感器 |
CN103630229B (zh) * | 2013-12-18 | 2015-10-07 | 东南大学 | 一种微分相干时域散射型分布式光纤振动传感方法及系统 |
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