[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"item-4301":3,"related-4301":69},{"id":4,"title":5,"url":6,"summary":7,"summary_zh":8,"content":9,"source_name":10,"source_url":6,"published_at":11,"category":12,"cover_url":9,"hotness":13,"is_selected":14,"score":15,"score_detail":16,"sources":18,"tags":20,"primary_topic":9,"secondary_topics":25,"classification":26,"search_phrases":41,"slug":44,"view_count":15,"doi":45,"paper":46,"created_at":68},4301,"Passive optical fiber sensor system for water level monitoring with implementation of human-machine interface module","https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.nucengdes.2026.115253","In this paper, we demonstrate a remote passive optical fiber sensor system based on space division multiplexing for water level monitoring targeting to extreme environments, such as a spent fuel pool in nuclear power plant. The proposed system is evaluated under laboratory conditions to demonstrate its feasibility for future nuclear safety instrumentation applications. It employs a broadband light source as a seed light and a 1 × 4 optical splitter for multiplexing\u002Fdemultiplexing multiple optical fiber sensors. Four sensors are vertically installed in a water pool at predefined heights. By measuring the reflected optical power from each sensor with an optical receiver, the discrete water level state corresponding to the predefined sensor positions can be determined in real-time. To mitigate the effect of Rayleigh backscattering in remote sensing, a simple dual-path configuration is introduced. Experimental results show that the proposed system can monitor water levels over a distance of approximately 19 km, limited by the performance of the detector. On the other hand, providing intuitive and real-time information for water level monitoring to operators remains a significant challenge. To address this issue, a human-machine interface (HMI) module is also implemented. By providing real-time information on the discrete water level states and system status through the HMI display, it enables operators to intuitively monitor the current water level status, as well as perform trend analysis and abnormal condition detection.","本文展示了一种基于空分复用的远程无源光纤传感器系统，用于极端环境下的水位监测，例如核电站乏燃料池。该系统在实验室条件下进行了评估，以验证其未来在核安全仪表应用中的可行性。系统采用宽带光源作为种子光，并使用1×4光分路器对多个光纤传感器进行复用\u002F解复用。四个传感器按预定高度垂直安装在水池中。通过光接收器测量每个传感器的反射光功率，可以实时确定与预定传感器位置相对应的离散水位状态。为减轻远程传感中瑞利后向散射的影响，引入了一种简单的双路配置。实验结果表明，所提出的系统能够在约19 km的距离上监测水位，该距离受限于探测器性能。另一方面，为操作人员提供直观且实时的水位监测信息仍是一项重大挑战。为解决这一问题，还实现了一个人机界面（HMI）模块。通过HMI显示屏提供离散水位状态和系统状态的实时信息，使操作人员能够直观地监测当前水位状态，并进行趋势分析和异常状况检测。",null,"Nuclear Engineering and Design","2026-10-05T00:00:00Z","论文",10,false,0,{"impact":15,"substance":15,"depth":15,"authority":15,"freshness":15,"relevant":15,"comment":17},"面向核电站乏燃料池的被动光纤液位监测系统，属核安全仪控领域，与三农及农业信息化无关，不建议进入每日精选。",[19],{"name":10,"url":6},[21,22,23,24],"光纤传感","核安全监测","液位监测","人机界面",[],{"status":27,"locked":14,"version":28,"method":29,"evidence":30},"needs_review","2026-10-22.2","rules",{"candidates":31,"agricultural_evidence":14,"reason":40},[32],{"code":33,"score":34,"supported":35,"title":36,"abstract":37,"tags":39},"I3",3,true,[],[38],"remote sensing",[],"农业相关性需要复核",[42,43],"光纤液位传感器 核电站 乏燃料池","核安全监测 人机界面 光纤传感 液位监测","光纤液位传感器核电站乏燃料池-4301","10.1016\u002Fj.nucengdes.2026.115253",{"doi":45,"openalex_id":47,"authors":48,"venue":10,"cited_by_count":15,"oa_url":59,"card":60,"direction":66,"ingested_from":67},"W7220370979",[49,51,53,56],{"name":50,"orcid":9},"Gitae Kim",{"name":52,"orcid":9},"Jinjong Seo",{"name":54,"orcid":55},"Jaeyul Choo","https:\u002F\u002Forcid.org\u002F0000-0002-5804-858X",{"name":57,"orcid":58},"Hoon-Keun Lee","https:\u002F\u002Forcid.org\u002F0000-0003-4571-7243","https:\u002F\u002Fwww.sciencedirect.com\u002Fscience\u002Farticle\u002Fpii\u002FS0029549326005054\u002Fpdf",{"tldr":61,"method":62,"finding":63,"direction":64,"opportunity":65},"提出基于空分复用的无源光纤水位传感器系统，并实现人机界面模块。","宽带光源、1×4分光器、四传感器垂直布设、双路径抑制瑞利散射。","系统可在约19公里距离实时监测离散水位，HMI支持趋势分析与异常检测。","其他","将无源光纤水位监测与HMI移植到农业灌区\u002F稻田，研究低成本、长距离、抗干扰的农田水位物联网方案。","智慧农业 \u002F 农业物联网","openalex","2026-10-06T23:30:11.715195Z",{"total":70,"page":70,"page_size":70,"items":71},1,[72],{"id":73,"title":74,"url":75,"summary":76,"summary_zh":77,"content":9,"source_name":78,"source_url":75,"published_at":79,"category":12,"cover_url":9,"hotness":13,"is_selected":14,"score":80,"score_detail":81,"sources":88,"tags":90,"primary_topic":94,"secondary_topics":99,"classification":100,"search_phrases":115,"slug":118,"view_count":70,"doi":119,"paper":120,"created_at":143},5168,"Study on barchan dune movement velocity using fiber optic sensing theory and technology: a case study in the Tengger Desert, China","https:\u002F\u002Fdoi.org\u002F10.1088\u002F1402-4896\u002Faeb58f","Abstract Dune movement velocity monitoring is essential to the study of desert ecosystem evolution, the protection of surrounding agriculture, and the prevention of wind erosion. However, traditional monitoring technologies such as field marking, GPS positioning, and image remote sensing suffer from limited accuracy and resistance to interference under harsh desert conditions. To address these issues, this study integrates Brillouin optical time-domain reflectometry (BOTDR) with aeolian sand dynamics to establish a theory and methodology for measuring dune movement velocity via optical fiber sensing. Specifically, a physical model is constructed to describe the complete transmission chain from wind forcing, through dune deformation and optical fiber strain transfer. Utilizing the proposed theory and method, numerical simulations are performed on barchan dunes in the Tengger Desert to analyze the movement velocities of dunes with varying widths, and the results are compared with those obtained through traditional monitoring technologies. It indicates that the proposed method exhibits advantages in terms of monitoring frequency and spatial resolution. The theory and methodology provide technical support for the scientific monitoring of mobile dunes and the prevention of desertification.","摘要 沙丘移动速度监测对沙漠生态系统演化研究、周边农业保护及风蚀防治具有重要意义。然而，野外标记、GPS定位、影像遥感等传统监测技术在沙漠恶劣条件下存在精度有限、抗干扰能力不足等问题。针对上述问题，本研究将布里渊光时域反射技术(BOTDR)与风沙动力学相结合，建立了基于光纤传感的沙丘移动速度测量理论与方法。具体而言，构建了描述风力驱动、沙丘变形至光纤应变传递完整链条的物理模型。利用所提理论与方法，对腾格里沙漠新月形沙丘开展数值模拟，分析了不同宽度沙丘的移动速度，并与传统监测技术所得结果进行对比。结果表明，所提方法在监测频率和空间分辨率方面具有优势。该理论与方法为流动沙丘科学监测及荒漠化防治提供了技术支撑。","Physica Scripta","2026-10-16T00:00:00Z",71,{"impact":82,"substance":83,"depth":84,"authority":85,"freshness":86,"relevant":70,"comment":87},12,20,17,13,9,"将BOTDR光纤传感用于沙丘移动速度监测，方法新颖且对荒漠化防治与农田风蚀防护有实用价值，但属细分领域论文，影响范围有限。",[89],{"name":78,"url":75},[91,92,21,93],"遥感监测","荒漠化防治","风沙监测",{"code":33,"slug":95,"name":96,"path":97,"parent_code":98},"remote-sensing","遥感与农情监测","\u002Ftopic\u002Fdigital-agriculture\u002Fremote-sensing","I",[],{"status":101,"locked":14,"version":28,"method":29,"evidence":102},"classified",{"candidates":103,"agricultural_evidence":35},[104,110],{"code":33,"score":105,"supported":35,"title":106,"abstract":107,"tags":109},7,[],[108,38],"遥感",[91],{"code":111,"score":70,"supported":14,"title":112,"abstract":113,"tags":114},"H6",[],[],[92],[116,117],"腾格尔沙漠 沙丘移动 光纤传感","BOTDR 沙丘移动速度","腾格尔沙漠沙丘移动光纤传感-5168","10.1088\u002F1402-4896\u002Faeb58f",{"doi":119,"openalex_id":121,"authors":122,"venue":78,"cited_by_count":15,"oa_url":9,"card":137,"direction":142,"ingested_from":67},"W7222732569",[123,125,128,130,132,134],{"name":124,"orcid":9},"Kesen Tao",{"name":126,"orcid":127},"Xin Ma","https:\u002F\u002Forcid.org\u002F0009-0001-2609-8718",{"name":129,"orcid":9},"Jinsheng Yu",{"name":131,"orcid":9},"Zhiting Li",{"name":133,"orcid":9},"Wenhai Sun",{"name":135,"orcid":136},"Xingcai Li","https:\u002F\u002Forcid.org\u002F0000-0003-3257-1601",{"tldr":138,"method":139,"finding":140,"direction":64,"opportunity":141},"提出基于BOTDR光纤传感的沙丘移动速度测量理论与方法，并在腾格里沙漠验证。","将布里渊光时域反射技术与风沙动力学结合，构建风-沙丘变形-光纤应变传递模型并数值","该方法在监测频率和空间分辨率上优于传统标记、GPS和遥感技术。","可将光纤传感用于农田风蚀与沙丘入侵的实时监测预警，弥补传统遥感精度不足。","农业遥感与作物表型","2026-10-17T23:30:28.493340Z"]