Abstract
This study presents a novel method for determining the moisture content in spices by means of compact microstrip fractal resonator. The proposed resonator is designed at 1 GHz using FR4 substrate with dielectric constant of 4.6. A resonator sensor in the shape of fractal designed using the tool ADS and working at 0.9 GHz to 3 GHz band is demonstrated. The relative shift in frequency and attenuation was observed to vary with respect to the moisture content/permittivity of the test material independent of its density.
Highlights
Moisture content is a measure of the quantity of water in a product
We have proposed a fractal resonator sensor which is designed to determine the moisture content in cardamom and the sensor has been implemented for a density independent calibration
Upon placing the dry sample on the sensor the frequency shown in the Vector Network Analyzer (VNA) is 1.003 GHz
Summary
Moisture content is a measure of the quantity of water in a product. A novel method to measure the moisture content of cardamom has been proposed. We have proposed a fractal resonator sensor which is designed to determine the moisture content in cardamom and the sensor has been implemented for a density independent calibration.
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