Integrating Soil pH Measurement Into An Internet Of Things Application, authors: Adrian ZĂRNESCU, Răzvan UNGURELU, Marius – Ionuţ MACOVEI, Gaudenţiu VĂRZARU.

Soil pH is an indicator of the soil quality because it affects plant growing The work presents a device for soil pH determination on site and remote transmission of the result. Normally soil samples are taken from the field and tested in door in aqueous solutions using However, it was an increasing demand for on site measurements materialized in a plethora of stand alone devices Most of them offer a narrow range of pH values, e g 3 to 8 because the majority of plants has an optimum range between 5.5 and 7.5. The Internet of Things exigencies have led to design a node of multiple sensors including soil pH measurement with an increased precision Therefore, it was used a sensor for hydrogen ion activity measurement based on glass membrane as a junction between the soil solution and a reference solution The probe was calibrated using pH known solutions and then tested on different soil samples all data being remotely collected.

Poster Syswin Solutions USAMV 2018-3

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