Publication detail

Continuous and real-time indoor and outdoor methane sensing with portable optical sensor using rapidly pulsed IR LEDs

MAHBUB, P. NOORI, A. PARRY, J. DAVIS, J. LUCIEER, A. MACKA, M.

Original Title

Continuous and real-time indoor and outdoor methane sensing with portable optical sensor using rapidly pulsed IR LEDs

Type

journal article in Web of Science

Language

English

Original Abstract

We designed a simple, portable, low-cost and low-weight nondispersive infrared (NDIR) spectroscopy-based system for continuous remote sensing of atmospheric methane (CH4) with rapidly pulsed near-infrared light emitting diodes (NIR LED) at 1.65 mu m. The use of a microcontroller with a field programmable gate array (mu CFPGA) enables on-the-fly and wireless streaming and processing of large data streams (similar to 2 Gbit/s). The investigated NIR LED detection system offers favourable limits of detection (LOD) of 300 ppm (+/- 5%) CH4,. All the generated raw data were processed automatically on-the-fly in the mu C-FPGA and transferred wirelessly via a network connection. The sensing device was deployed for the portable sensing of atmospheric CH4 at a local landfill, resulting in quantified concentrations within the sampling area (ca 400 m(2)) in the range of 0.5%-3.35% CH4. This NIR LED-based sensor system offers a simple low-cost solution for continuous real-time, quantitative, and direct measurement of CH4 concentrations in indoor and outdoor environments, yet with the flexibility provided by the custom programmable software. It possesses future potential for remote monitoring of gases directly from mobile platforms such as smartphones and unmanned aerial vehicles (UAV).

Keywords

Near infrared light emitting diodes (NIR LED); Non-dispersive infrared (NDIR) spectroscopy; Remote continuous sensing of methane gas; Wireless data transfer; On-the-fly automated data processing; Real-time facile monitoring of gas

Authors

MAHBUB, P.; NOORI, A.; PARRY, J.; DAVIS, J.; LUCIEER, A.; MACKA, M.

Released

1. 10. 2020

ISBN

0039-9140

Periodical

Talanta

Year of study

218

Number

121144

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

9

Pages count

9

URL

https://doi.org/10.1016/j.talanta.2020.121144

BibTex

@article{BUT169136,
  author="Parvez {Mahbub} and Ansara {Noori} and John, S. {Parry} and John {Davis} and Arko {Lucieer} and Miroslav {Macka}",
  title="Continuous and real-time indoor and outdoor methane sensing with portable optical sensor using rapidly pulsed IR LEDs",
  journal="Talanta",
  year="2020",
  volume="218",
  number="121144",
  pages="1--9",
  doi="10.1016/j.talanta.2020.121144",
  issn="0039-9140",
  url="https://doi.org/10.1016/j.talanta.2020.121144"
}