2020
DOI: 10.15446/dyna.v87n213.75361
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Calibración de dos sensores capacitivos de humedad en un Ultisol

Abstract: Los objetivos de este estudio fueron realizar la calibración y determinar las ecuaciones de calibración de dos sensores de humedad de suelo ECH2O para un suelo Ultisol colectado en el Municipio de Pesqueira-PE, localizado en el Semiárido Brasileño. El estudio se llevó a cabo en baldes plásticos de 5 litros implementados en ambiente protegido en la Universidad Federal Rural de Pernambuco, Recife-PE, donde se realizó el monitoreo diario de la humedad del suelo durante 51 días, desde la humedad de saturación hast… Show more

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“…Commercial sensors provide soil water content observations with very high accuracy, but due to the high acquisition and maintenance costs (thousands of dollars), elaborate and time-consuming procedures during calibration, and highly qualified personnel, extensive applications in field monitoring networks are limited. Alternatively, there are several types of low-cost sensors, such as the YL-69 [19], STEMMA [20], and the SKU:SEN0193 [6,21], that provide soil water content data with acceptable accuracy for projects under limited financial resources. However, the question remains, how should we balance low cost with high, or reasonable, accuracy when selecting the most suitable sensor to be employed in a project?…”
Section: Introductionmentioning
confidence: 99%
“…Commercial sensors provide soil water content observations with very high accuracy, but due to the high acquisition and maintenance costs (thousands of dollars), elaborate and time-consuming procedures during calibration, and highly qualified personnel, extensive applications in field monitoring networks are limited. Alternatively, there are several types of low-cost sensors, such as the YL-69 [19], STEMMA [20], and the SKU:SEN0193 [6,21], that provide soil water content data with acceptable accuracy for projects under limited financial resources. However, the question remains, how should we balance low cost with high, or reasonable, accuracy when selecting the most suitable sensor to be employed in a project?…”
Section: Introductionmentioning
confidence: 99%