Soil pH Sensing with an All-Solid-Electrode Sensor

Akshaya, AV and Nair, N and Bosco, MJ and Ananthasuresh, GK and Joseph, J (2023) Soil pH Sensing with an All-Solid-Electrode Sensor. In: 2023 IEEE Applied Sensing Conference, APSCON 2023, 23 - 25 January 2023, Bengaluru.

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Abstract

This paper presents the development and testing of a soil pH sensor that would facilitate in-situ soil pH sensing. The sensor does not have fragile components, making it robust and reliable for soil pH measurements. An Antimony rod is used as the sensing electrode, whereas a novel metal-polymer reference electrode is developed to reduce the requirement for frequent maintenance. The sensor is tested in soil solutions of different pH, yielding a slope of -56.2mV/pH, which is in agreement with the Nernst model.

Item Type:	Conference Paper
Publication:	APSCON 2023 - IEEE Applied Sensing Conference, Symposium Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Electrodes; pH; Soil moisture; Soil testing, Development and testing; Metal polymers; pH sensing; Reference electrodes; Sensing electrode; Soil pH; Soil pH measurement; Soil solutions; Solid electrodes, pH sensors
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	15 Jun 2023 08:49
Last Modified:	15 Jun 2023 08:49
URI:	https://eprints.iisc.ac.in/id/eprint/81997

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