Article
Version 1
NOT YET PEER-REVIEWED
Portable Laser Photoacoustic Methane Sensor Based on FPGA
Version 1
: Received: 5 September 2016 / Approved: 6 September 2016 / Online: 6 September 2016 (11:51:45 CEST)
A peer-reviewed article of this Preprint also exists.
Wang, J.; Wang, H.; Liu, X. A Portable Laser Photoacoustic Methane Sensor Based on FPGA. Sensors 2016, 16, 1551. Wang, J.; Wang, H.; Liu, X. A Portable Laser Photoacoustic Methane Sensor Based on FPGA. Sensors 2016, 16, 1551.
Journal reference: Sensors 2016, 16, 1551
DOI: 10.3390/s16091551
Abstract
A portable laser photoacoustic sensor based on a Field-Programmable Gate Array (FPGA) is reported for methane detection. A tunable DFB diode laser in the 1654 nm wavelength range is used as an excitation source. The photoacoustic signal processing was implemented by a FPGA device. A small resonant photoacoustic cell is designed. The minimum detection limit (1σ) of 10 ppm for methane (CH4) is demonstrated.
Subject Areas
FPGA; photoacoustic spectroscopy; diode laser; methane
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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