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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Abstract
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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