Tea leaves moisture measurement and prediction using RF waveguide antenna

Shyh Yau, Tein and Yi Lung, Then and Hieng Tiong, Su (2018) Tea leaves moisture measurement and prediction using RF waveguide antenna. In: IEEE Asia Pacific Microwave Conference (APMC), 13-16 November 2017, Kuala Lumpur.

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Official URL: https://ieeexplore.ieee.org/abstract/document/8251...


This paper proposed a microwave reflection method by using a horn antenna at 10.3GHz to determine m.c. of tea leaves from 0% to 10.5%. The tea leaves are filled inside an acrylic container whereas a horn antenna is placed on the open ended of the container. Reflection coefficient, S 11 is collected and its relationship between gravimetric (m.c g ) and volumetric moisture content (m.c v ) are fitted in two polynomial equations respectively. The equations are used to predict m.c. of tea leaves. The maximum error for the predicted m.c g is 0.52% whereas the maximum error of predicted m.c v is 0.233%.

Item Type: Proceeding (Paper)
Uncontrolled Keywords: Reflection method, horn antenna, moisture content, tea leaves, reflection coefficient.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Faculties, Institutes, Centres > Faculty of Engineering
Depositing User: Yi Lung
Date Deposited: 27 Sep 2022 01:21
Last Modified: 27 Sep 2022 01:21
URI: http://ir.unimas.my/id/eprint/39988

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