Preprint Article Version 1 NOT YET PEER-REVIEWED

Portable Laser Photoacoustic Methane Sensor Based on FPGA

  1. School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, China
  2. Joint laboratory for extreme conditions matter properties, Southwest University of Science and Technology and research center of laser fusion CAEP, Mianyang 621010, China
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

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