Low cost turbidity sensor assembly, calibration and testing for water quality monitoring
DOI:
https://doi.org/10.52807/qunab.v1i2.16Keywords:
Arduino, code, monitor, turbidimeterAbstract
This article describes the methodology used to assemble a turbidimeter from a set of electronic devices, consisting of a sensor, a data conversion module, and an Arduino microcontroller. The elements were assembled following the technical specifications, and the necessary coding for its operation was carried out. The objective was to determine the calibration curve of the turbidity sensor with the help of the commercial HACH 2100Q turbidimeter. Eight mixtures of clay and water in different proportions were prepared; for each of them, 10 voltage readings were taken with the sensor and 10 turbidity readings with the HACH equipment. The correlation between both variables was evaluated, obtaining a quadratic equation with R2 equal to 99.87%. The percentage error of the measurements was 1.75%. The statistical parameters "p" for the coefficients of the model and for the analysis of variance were less than 0.05, indicating significance at 95%. The turbidity range evaluated was 0 500 ppm.
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Copyright (c) 2023 Adolfo Enrique Guerrero Escobedo, Carlos Vásquez-Blas, Wilson Reyes-Lázaro, Ernesto Segundo Wong-López, Hernán Edwin Verde-Luján
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© Los autores. Este artículo es publicado por la QuantUNAB de la Universidad Nacional de Barranca. Este es un artículo de acceso abierto, distribuido bajo los términos de la Licencia Creative Commons Atribución 4.0 Internacional (https://creativecommons.org/licenses/by/4.0/deed.es) que permite Compartir (copiar y redistribuir el material en cualquier medio o formato), Adaptar (remezclar, transformar y construir a partir del material) para cualquier propósito, incluso comercialmente.
