Title: Research Seminar – Distributed Fiber-optic Vibration Sensor for Gas Pipeline Leakage Detection Using a Hybrid Interferometer

The next School of Engineering and Digital Arts Research Seminar is entitled “Distributed Fiber-optic Vibration Sensor for Gas Pipeline Leakage Detection using a Hybrid Interferometer” and will be delivered by Professor Qiang Wang from Jiliang University, China on Tusday 22nd July from 3 – 4 pm in Seminar Room 2 (JS2), Jennison Building. Prof. Yong Yan will chair the seminar.

Dr Qiang Wang (Ph.D, Control Science and Engineering, Zhejiang University) is currently Professor at the School of Quality and Safety Engineering at China Jiliang University. His research focuses on fiber optic sensors for structure health monitoring, phased-array ultrasonics for nondestructive testing. His research has been funded by the National Natural Science Foundation of China (NSFC), National Quality Supervision and Inspection Public Welfare Project of China, and Zhejiang Provincial Natural Science Foundation of China. He has published more than 20 journal papers and 25 conference papers and holds 6 patents.

Recent developments of distributed optical fiber sensing technique for pipeline leakage detection based on the scattering or interferometric effect promise to provide cost-effective tools to allow monitoring of gas leakage over kilometer distances.

Prof. Wang will talk about their results from lab-scale studies of gas-filled pipeline leakage detection based on a distributed fiber optic sensing system, a hybrid Mach-Zehnder and Sagnac interferometer which is built to detect the phase signal induced by the acoustic wave, the detection principle and the leakage source localization method using the hybrid interferometer, and experimental work performed on a small lab rig to evaluate the performance of the leakage detection system over a gas pressure ranging from 0.5 to 1.5MPa and corresponding results.

All members of academic, technical and administrative staff are welcome to the seminar. RAs and postgraduates (PhD candidates and MSc students) are particularly encouraged to attend the event. For any further enquiry, please contact Prof. Yong Yan (Y.Yan@kent.ac.uk).