Projects per year
Michael Lengden was awarded an M.Phys. degree in physics from the University of Manchester, where he also received the Ph.D. in 2006 for his work on stepwise excitation of atomic and molecular metastable states.
After spending a year as an applications engineer for Laboratory Impex Systems LTD he joined the Centre for Microsystems and Photonics at the University of Strathclyde as a Research Fellow working on high temperature, high pressure gas composition measurements using tunable diode laser spectroscopy. In 2010 hw was appointed as a lecturer within the EEE department and is currently applying new techniques in tunable diode laser spectroscopy for concentration and pressure measurements in harsh environments, such as solid oxide fuel cells and aeroengines.
Expertise & Capabilities
My expertise lies in
- Tunable Diode Laser Spectrscopy
- Applied Gas Composition Measurements (Methane, Carbon Dioxide, NOx, SOx, Water Vapour)
- Cavity Ring Down Techniques for Flame Daignostics
- Miniaturisation of Optical Sensors
I have worked with a number of Industrial partners including, Rolls-Royce, Rolls-Royce Fuel Cell Systems, M2 Lasers, and Optosci. This work has primarily been foccused on the development of optical gas comopsitoin sensors for harsh environments, for example the measurement of carbon dioxide from the exhuast of aero engines.
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)
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.
1/02/20 → 31/01/23
A calibration-free methodology for resonantly enhanced photoacoustic spectroscopy using quantum cascade lasersIlke, M., Bauer, R. & Lengden, M., 15 Sep 2020, In: IEEE Sensors Journal. 20, 18, p. 10530-10538 9 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile20 Downloads (Pure)
A custom, high-channel-count data acquisition system for chemical species tomography of aero-jet engine exhaust plumesFisher, E. M. D., Tsekenis, S-A., Yang, Y., Chighine, A., Liu, C., Polydorides, N., Wright, P., Kliment, J., Ozanyan, K., Benoy, T., Humphries, G., Wilson, D., Lengden, M., Johnstone, W. & McCann, H., 29 Feb 2020, In: IEEE Transactions on Instrumentation and Measurement . 69, 2, p. 549-558 10 p.
Research output: Contribution to journal › Article › peer-reviewOpen AccessFile5 Citations (Scopus)11 Downloads (Pure)
Data for: "A Calibration-Free Methodology for Resonantly Enhanced Photoacoustic Spectroscopy using Quantum Cascade Lasers"
Demonstration of calibration-free WMS measurement of gas parameters with in-situ real-time characterization of laser parameters using cw-DFB-QCL, VCSEL and DFB lasers