Volume Measurement System Based on Hall Effect Sensors Circularly Coupled and Arranged in a Quadrature Shape. - Juan Carlos Martínez Espinosa; Fidel Córdoba-Valdés; Juan de Dios Ortiz Alvarado; Marcos Alberto Rodriguez Martinez; Marcos Leonardo Fuentes Ávila; Rafael Guzmán-Cabrera (Computación y Sistemas, 2021)