Publications

A spectroscopy-constraint network for fast thermochemical process monitoring using wavelength modulation spectroscopy

Xia Jiangnan, Zhang Rui, Ahmed Ihab, Pourkashanian Mohamed, Armstrong Ian, Lengden Michael, Johnstone Walter, McCann Hugh, Liu Chang

IEEE Transactions on Instrumentation and Measurement Vol 74 (2025)

https://doi.org/10.1109/tim.2025.3556818

Performance comparison of 3D printed photoacoustic gas sensors and a commercial quartz enhanced photoacoustic spectrometer

Dwivedi Utkarsh, Donnachie Mark, Ilke Metin, Bauer Ralf, Lengden Michael

IEEE Sensors Journal Vol 24, pp. 943-951 (2024)

https://doi.org/10.1109/JSEN.2023.3335649

Miniature modular sensor for chemical species tomography with enhanced spatial resolution

Zhang Rui, Xia Jiangnan, McCann Hugh, Liu Chang, Ahmed Ihab, Pourkashanian Mohamed, Gough Andrew, Armstrong Ian, Lengden Michael, Johnstone Walter

2023 IEEE International Conference on Imaging Systems and Techniques (IST) 2023 IEEE International Conference on Imaging Systems and Techniques IEEE International Workshop on Imaging Systems and Techniques (IST) (2023)

https://doi.org/10.1109/IST59124.2023.10355729

A fast sensor for non-intrusive measurement of concentration and temperature in turbine exhaust

Zhang Rui, Xia Jiangnan, Ahmed Ihab, Gough Andrew, Armstrong Ian, Upadhyay Abhishek, Fu Yalei, Enemali Godwin, Lengden Michael, Johnstone Walter, Wright Paul, Ozanyan Krikor, Pourkashanian Mohamed, McCann Hugh, Liu Chang

Sensors and Actuators B: Chemical Vol 396 (2023)

https://doi.org/10.1016/j.snb.2023.134500

Hybrid model-driven spectroscopic network for rapid retrieval of turbine exhaust temperature

Fu Yalei, Zhang Rui, Xia Jiangnan, Gough Andrew, Clark Stuart, Upadhyay Abhishek, Enemali Godwin, Armstrong Ian, Ahmed Ihab, Pourkashanian Mohamed, Wright Paul, Ozanyan Krikor, Lengden Michael, Johnstone Walter, Polydorides Nick, McCann Hugh, Liu Chang

IEEE Transactions on Instrumentation and Measurement Vol 72 (2023)

https://doi.org/10.1109/TIM.2023.3328086

Rapid and in situ gas turbine plume diagnosis using laser absorption spectroscopy

Zhang Rui, Xia Jiangnan, Gough Andrew, Ahmed Ihab, Fu Yaeli, Armstrong Ian, Upadhyay Abhishek, Enemali Godwin, Lengden Michael, Johnstone Walter, Pourkashanian Mohamed, Wright Paul, Ozanyan Krikor, McCann Hugh, Liu Chang

Gordon Conference - Advancing Optical Diagnostics for Future Energy Systems (2023)

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Teaching

I teach a number of course related to electronics, fundamental physics and optical systems.  I also supervise 3rd year, 4th year and Masters projects based on the development of optical fibre sensors.  My teaching is as follows

• EE107 Electronic and Electrical Principles (Tutor)
• 19207 - Electromagnetism (Lecturer)
• EE473 - Photonic Systems (Lecturer)
• EE986 - MSc Professional Studies (Tutor)
• EE979 - Photonics Centre for Doctoral Training (Lecturer and Project Supervisor)
• 19.496 - 4th Year Undergraduate Individual Projects (Supervisor)
• 19.900 - MSc Individual Project (Supervisor)

Research Interests

My current research interests lie in the application of tunable diode laser spectroscopy (TDLS) for gas sensing applications in industrial process control and harsh environments.  I also work on fundamental spectroscopic measurements of gas species at high temperatures.  I am a PI on an EPSRC First Grant looking at the use of 3D printing for photoacoustic measurements of methane, acetylene and SOx.  I am also a CI on a collaborative EPSRC grant with the Universities of Manchester and Southampton, Rolls-Royce and Shell.  My main focus on this project is the development of TDLS techniques to measure a 2D tomographic distribution of carbon dioxide from aero engine exhausts.

Professional Activities

Strategic Themes - IEEE Distinguished Lecture Series – GE Gas Measurement Sensor Technologies

Organiser

26/11/2024

SAE International (External organisation)

Advisor

2022

Chemical Species Tomography for Industrial Emissions and Combustion Measurements

Speaker

2022

Recent Developments in Aero-Engine Imaging Systems for Emissions Measurement

Speaker

2020

3D Printed Sensors for Industrial Process Control

Speaker

2015

Optics Letters (Journal)

Peer reviewer

2012

More professional activities

Projects

A Spectroscopy Suite for Direct Low Waste Measurement for All States of Matter

Campbell, Andrew John (Principal Investigator) Burns, Iain (Co-investigator) Lengden, Michael (Co-investigator) Murray, Paul (Co-investigator)

01-Jan-2024 - 31-Jan-2024

Improved productivity and sustainability in high value dairy production through the deployment of low cost wireless methane sensors (Digital Dairy Chain)

Michie, Craig (Principal Investigator) Andonovic, Ivan (Co-investigator) Lengden, Michael (Co-investigator) Tachtatzis, Christos (Co-investigator)

01-Jan-2023 - 31-Jan-2025

EPSRC Centre for Doctoral Training in Industry-Inspired Photonic Imaging, Sensing and Analysis | Gill, Kamalpreet

Lengden, Michael (Principal Investigator) Flockhart, Gordon (Co-investigator) Gill, Kamalpreet (Research Co-investigator)

09-Jan-2023 - 09-Jan-2027

EPSRC Centre for Doctoral Training in Industry-Inspired Photonic Imaging, Sensing and Analysis | Martin, Euan

Lengden, Michael (Principal Investigator) Flockhart, Gordon (Co-investigator) Martin, Euan (Research Co-investigator)

12-Jan-2022 - 12-Jan-2026

Digital Dairy Value-Chain for South-West Scotland and Cumbria (Strength in Places Fund)

Michie, Craig (Principal Investigator) Wagner, Beverly (Academic) Wilson, Juliette (Academic) Andonovic, Ivan (Co-investigator) Atkinson, Robert (Co-investigator) Bellekens, Xavier (Co-investigator) Galloway, Stuart (Co-investigator) Kelly, Nicolas (Co-investigator) Lengden, Michael (Co-investigator) Revie, Matthew (Co-investigator) Stewart, Robert (Co-investigator) Tachtatzis, Christos (Co-investigator) Ward, Andrew (Co-investigator)

01-Jan-2022 - 31-Jan-2027

NPL iCase Studentship - Understanding the Behaviour of Gases in Combustion Processes

Lengden, Michael (Principal Investigator) Flockhart, Gordon (Co-investigator)

01-Jan-2021 - 30-Jan-2025

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