Linqing Luo

Dr Linqing Luo

Researcher
Office: 437 Davis Hall
Email: ll432@berkeley.edu or linqingluo@lbl.gov

Linqing started his research work in University of Liverpool where he developed an automatic testing system to detect the leakage current of oxide layer made by different new oxidizing material in CMOS technology during his underground studies in 2012. He then moved to University of Cambridge for an MRes degree. During his master’s degree, he focused on liquid crystal studying on LC laser and designed a portable and wearable near-infrared topography system for imaging functional activation in the brain.

Linqing’s PhD project is to develop a low-cost and high-performance Brillouin Scattering Fibre sensor system particularly developed for civil engineering in Structural Health Monitoring during construction and life-time maintenance. The system can be used to detect the failure inside the buildings and can detect the strain change in a large area and long distance. His research includes distributed Brillouin scattering based fibre optic analyzer design and improvement on the spatial and frequency measurement. After the work with colleagues, the measurement speed has been improved to provide the dynamic measurement with long distance.

Now Linqing is working on dynamic distributed fiber optic sensing (DFOS) system. He applies his research on to the pavement and vehicle detection. He works is part of the smart infrastructure and smart city in terms of structural health monitoring. He contributes to the design of sensing system of underground temperature sensing network and chemical sensing network in soil and environment monitoring. He also works on crack detection by using DFOS.

 

Research interests:

Nonlinear fiber optics

Distributed fiber optics sensing, strain, temperature, acoustic, chemical, etc.

Optical sensors

Structural health monitoring

Smart infrastructure and smart cities.

Publications:

  • LINQING LUO, HIDEHIKO SEKIYA, KENICHI SOGA (2019) “Dynamic distributed fiber optic strain sensing on movement detection”, 19(14), 5639-5644. DOI:1109/JSEN.2019.2907889
  • US Patent (WO2018005539A1): “Distributed dynamic strain fiber optics measurement by Brillouin optical time-domain Reflectometry”.

 

Figure 1 Distributed fiber optic sensing on pipeline monitoring at Cornell University
Figure 2 The group photo at pipeline fault monitoring at Cornell University
Figure 3 Analyzer design and movement detection
Figure 4 Caltrans Base grout test using our dynamic DFOS analyzer
Figure 5 Levee project at Sacramento
Figure 6 TBSI DFOS at Shenzhen
Figure 7 TBSI DFOS pile at Shenzhen
Figure 8 Pavement at Davis
Figure 9 Pavement test at Davis
Figure 10 Pavement test at Richmond field station