Effect of Relative Humidity and Air Temperature on the Results Obtained from Low-Cost Gas Sensors...

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  • Título: Effect of Relative Humidity and Air Temperature on the Results Obtained from Low-Cost Gas Sensors for Ambient Air Quality Measurements
  • Autor: Samad, Abdul; Obando Núñez, Daniel Ricardo; Solís Castillo, Grecia Carolina; Laquai, Bernd; Vogt, Ulrich
  • Publicación original: Open Access Journal: Sensors, 2020
  • Descripción física: PDF
  • Nota general:
    • Colombia
  • Notas de reproducción original: Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
  • Notas:
    • Resumen: Abstract: Using low-cost gas sensors for air quality monitoring promises cost e ective and convenient measurement systems. Nevertheless, the results obtained have a questionable quality due to di erent factors that can a ect sensor performance. The most discussed ones are relative humidity and air temperature. This investigation aimed to assess the behavior of B4-series low-cost gas sensors from Alphasense for measuring CO, NO, NO2, and O3 for di erent levels of relative humidity and temperature. These low-cost gas sensors were tested for six relative humidity levels from 10% to 85% with increasing steps of 15% and four temperature levels of 10 C, 25 C, 35 C, and 45 C against reference instruments in the laboratory. The e ect of these parameters on low-cost gas sensors was quantified in laboratory from which a correction algorithm was calculated, which was then applied to the field data. The applied algorithm improved the data quality of the low-cost gas sensors in most of the cases. Additionally, a low-cost dryer was assessed to reduce the influence of these factors on the low-cost gas sensors, which also proved to be suitable to enhance the data quality.
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    • Colfuturo
  • Forma/género: texto
  • Idioma: castellano
  • Institución origen: Biblioteca Virtual del Banco de la República
  • Encabezamiento de materia:

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