Projects per year
Abstract
This paper describes the performance of two miniaturized stereolithographic 3D-printed photo-acoustic gas sensors designed for the mid-IR. The first sensor uses a commercial electret microphone, and the second contains a MEMS microphone. A resonant photo-acoustic cell design is used for both sensors, employing the first longitudinal resonance to amplify the signal. The sensor design performance is investigated using Finite Element Modelling software - COMSOL multiphysics before fabrication to optimise dimensions for maximum signal. A comparison is then given of the sensors performance with the two different microphone types, using an 8.65 μm continuous wave Quantum Cascade Laser and methane, giving a limit of detection of 90 ppm for an integration time of 266 seconds for the electret microphone and 182 ppm for an integration time of 261 seconds for the MEMS microphone.
Original language | English |
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Title of host publication | IEEE SENSORS 2017 Conference Proceedings |
Place of Publication | Piscataway, N.J. |
Publisher | IEEE |
Pages | 1482-1484 |
Number of pages | 3 |
Edition | 2017 |
ISBN (Electronic) | 9781538640562 |
ISBN (Print) | 9781538640562 |
Publication status | Published - 3 Oct 2017 |
Event | IEEE SENSORS 2017 - Scottish Exhibition and Conference Centre, Glasgow, United Kingdom Duration: 29 Oct 2017 → 1 Nov 2017 http://www.ieee-sensors2017.org |
Conference
Conference | IEEE SENSORS 2017 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 29/10/17 → 1/11/17 |
Internet address |
Keywords
- miniaturized
- 3D-printed
- photoacoustic trace gas sensor
- photoacoustic
- quantum cascade laser
- mid-infrared spectroscopy
Fingerprint
Dive into the research topics of 'Performance of a 3D printed photoacoustic sensor for gas detection in mid-infrared'. Together they form a unique fingerprint.Projects
- 1 Finished
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Development of a Micro-electromechanical Photoacoustic Spectrometer for Industrial Applications and the Study of SO2 at High Temperatures
Lengden, M. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/07/13 → 31/12/15
Project: Research
Research output
- 4 Citations
- 1 Conference contribution book
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All-optical fiber multi-point photoacoustic spectroscopic gas sensing system
Zhang, C., Yang, Y., Lin, Y., Tan, Y., Lengden, M., Humphries, G., Johnstone, W., Lut Ho, H. & Jin, W., 28 Sept 2018, Proceedings 26th International Conference on Optical Fiber Sensors. Washington, DC: Optical Society of America, 4 p.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
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