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A Portable Laser Photoacoustic Methane Sensor Based on FPGA
A portable laser photoacoustic sensor for methane (CH(4)) detection based on a field-programmable gate array (FPGA) is reported. A tunable distributed feedback (DFB) diode laser in the 1654 nm wavelength range is used as an excitation source. The photoacoustic signal processing was implemented by a...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
MDPI
2016
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5038821/ https://www.ncbi.nlm.nih.gov/pubmed/27657079 http://dx.doi.org/10.3390/s16091551 |
| Sumario: | A portable laser photoacoustic sensor for methane (CH(4)) detection based on a field-programmable gate array (FPGA) is reported. A tunable distributed feedback (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 is demonstrated. |
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