A Simplified and Portable Capacitance Sensor to Measure Moisture Content of Paddy

Year 2018, Volume: 31 Issue: 3, 821 - 829, 01.09.2018

Divya Nathk , Prabhu Ramanathan

Abstract

The moisture content in agricultural products will
affect the quality and safety storage of it. Fungi development happens if the moisture
content is not optimum. This paper presents a non – destructive, simple, fast
and low cost interface circuit to measure the moisture content of paddy grains
heated in different temperature. The arrangement used is a high precision
impedance converter. Ceramic capacitors of different values were used to
standardize the measuring circuit. Using this circuit, moisture content of
representative standard grown samples was measured and dielectric constant was
calculated.  A moisture meter developed
using this circuit can be implemented to measure the moisture content of any grains.
The paper discusses the working principle, technique, methodology and
experimental set up used and the results obtained.

Keywords

Moisture content measurement; non-destructive; parallel plate capacitor sensor and grains.

References

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