Energy Industry
15
2024-07
Qingwen Liu, Xinyu Fan, and Zuyuan He, ” Time-Gated Digital Optical Frequency Domain Reflectometry with 1.6-m Spatial Resolution over Entire 110-km Range,” Optics Express, Vol. 23, No. 20, pp. 25988-25995, 2015
15
2024-07
Shuai Wang, Xinyu Fan, Qingwen Liu, and Zuyuan He, ” Distributed Fiber-Optic Vibration Sensing Based on Phase Extraction from Time-Gated Digital OFDR,” Optics Express, Vol. 23, No. 26, pp. 33301-33309, 2015
15
2024-07
Zuyuan He, Qingwen Liu, and Tomochika Tokunaga. “Ultrahigh resolution fiber-optic quasi-static strain sensors for geophysical research.” Photonic Sensors, Vol. 3, No. 4, pp. 295, 2013 (Invited Paper)
12
2024-07
岗位职责 1) 从事声学振动阵列信号分析处理、机械故障诊断算法开发等工作; 2) 参与完成现场测试，并开展外场试验数据的处理和分析; 3) 参与重要客户的技术交流及解决方案的设计; 4) 编写相关技术文档。
08
2024-07
Urban comprehensive pipelines, including communication, electricity, water supply, drainage, heating, and gas pipelines, are critical infrastructures for future smart city development. With the extensive development of smart cities, these pipelines span millions of kilometers, serving as the lifelines of cities. Utilizing advanced fiber optic sensing technology and integrating various Internet of Things (IoT) sensor technologies within comprehensive utility tunnels enables comprehensive intelligent sensing of underground utility tunnel operations.
08
2024-07
Critical Site Perimeter Security Monitoring
Distributed optical fiber acoustic sensing technology (DAS) has been widely used in the field of perimeter security. Taking the airport as an example, in the airport perimeter security, the application of DAS system greatly improves the intelligence and automation level of security protection.
08
2024-07
Power / Communication Cable Monitoring
This application includes the monitoring of both underground and overhead power cables. In overhead cable monitoring, wind-induced motion monitoring (known as Aeolian vibration monitoring) is crucial. Underground cable monitoring primarily focuses on external damage monitoring and warning, temperature monitoring, and partial discharge monitoring.
08
2024-07
Due to the unique marine environment, recent domestic and international experimental studies have demonstrated the distinct advantages and irreplaceability of DAS technology in marine scientific exploration, showcasing a wide range of applications. These include tidal and current monitoring, tsunami and storm detection, marine animal target monitoring, submarine geological imaging, and seabed carbon capture and storage (CCS). The ixDAS-3000 series products, capable of measuring extremely low-frequency signals (detecting signals below 0.01 Hz), fully meet the various application requirements of marine scientific exploration.
08
2024-07
Marine seismic observation has long relied on seabed seismometers, which have high deployment and maintenance costs, resulting in less extensive and dense coverage compared to terrestrial observations. Utilizing long-distance DAS technology and the existing extensive network of submarine optical cables, including retired submarine communication cables or unused “dark” fibers in active cables, a wide-area marine seismic observation network with high spatial sampling densities can be established.
04
2024-07
岗位职责 1) 负责FPGA的功能单元与外设接口的RTL开发、时序优化、仿真测试; 2) 负责FPGA系统架构开发; 3) 协同软/硬件团队进行联合调试; 4) 参与FPGA系统板芯片选型、设计、测试。
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