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Alignment of the Measurement Scale Mark during Immersion Hydrometer Calibration Using an Image Processing System

The present work presents an improved method to align the measurement scale mark in an immersion hydrometer calibration system of CENAM, the National Metrology Institute (NMI) of Mexico, The proposed method uses a vision system to align the scale mark of the hydrometer to the surface of the liquid w...

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Detalles Bibliográficos
Autores principales: Peña-Perez, Luis Manuel, Pedraza-Ortega, Jesus Carlos, Ramos-Arreguin, Juan Manuel, Arriaga, Saul Tovar, Fernandez, Marco Antonio Aceves, Becerra, Luis Omar, Hurtado, Efren Gorrostieta, Vargas-Soto, Jose Emilio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3871082/
https://www.ncbi.nlm.nih.gov/pubmed/24284770
http://dx.doi.org/10.3390/s131114367
Descripción
Sumario:The present work presents an improved method to align the measurement scale mark in an immersion hydrometer calibration system of CENAM, the National Metrology Institute (NMI) of Mexico, The proposed method uses a vision system to align the scale mark of the hydrometer to the surface of the liquid where it is immersed by implementing image processing algorithms. This approach reduces the variability in the apparent mass determination during the hydrostatic weighing in the calibration process, therefore decreasing the relative uncertainty of calibration.