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Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor

This paper describes the application of a monopole sensor to determine the moisture content in the tuber of Dioscorea hispida, based on magnitude and phase of reflection coefficient and admittance measurement. This preliminary work is to study relationship between microwave and alkaloid dioscorine o...

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Main Authors: Muhammad Hafizi, Mardiah Hafizah, Abbas, Zulkifly, Zainuddin, M. F., Mohamad Ibrahim, N.
Format: Conference or Workshop Item
Language:English
Published: Faculty of Engineering, Universiti Putra Malaysia 2012
Online Access:http://psasir.upm.edu.my/id/eprint/50685/1/_TechnicalPapers_CAFEi2012_198.pdf
http://psasir.upm.edu.my/id/eprint/50685/
http://cafei.upm.edu.my/download.php?filename=/TechnicalPapers/CAFEi2012_198.pdf
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spelling my.upm.eprints.506852017-03-02T06:20:40Z http://psasir.upm.edu.my/id/eprint/50685/ Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor Muhammad Hafizi, Mardiah Hafizah Abbas, Zulkifly Zainuddin, M. F. Mohamad Ibrahim, N. This paper describes the application of a monopole sensor to determine the moisture content in the tuber of Dioscorea hispida, based on magnitude and phase of reflection coefficient and admittance measurement. This preliminary work is to study relationship between microwave and alkaloid dioscorine of the tuber of Dioscorea hispida. The most widely used standard technique, which is the standard oven drying method, is time consuming and only suitable for laboratory experiment. As an alternative, measurement of moisture content in the tuber of Dioscorea hispida using microwave techniques is proposed. The measurement setup consists of a monopole antenna and a FieldFox RF Analyzer N9912A. This system utilizes a monopole sensor to transmit the microwave signal in the tuber of Dioscorea hispida sample and display the magnitude and phase of the reflection coefficient on the FieldFox. The admittance, on the other hand, is derived from the reflection coefficient measurement. The relationship between the magnitude, phase shift, admittance and moisture contents were studied. The relationships were used to obtain an empirical formula which was used to predict the moisture content in the tuber of Dioscorea hispida. Faculty of Engineering, Universiti Putra Malaysia 2012 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/50685/1/_TechnicalPapers_CAFEi2012_198.pdf Muhammad Hafizi, Mardiah Hafizah and Abbas, Zulkifly and Zainuddin, M. F. and Mohamad Ibrahim, N. (2012) Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor. In: International Conference on Agricultural and Food Engineering for Life (Cafei2012), 26-28 Nov. 2012, Palm Garden Hotel, Putrajaya. (p. 791). http://cafei.upm.edu.my/download.php?filename=/TechnicalPapers/CAFEi2012_198.pdf
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description This paper describes the application of a monopole sensor to determine the moisture content in the tuber of Dioscorea hispida, based on magnitude and phase of reflection coefficient and admittance measurement. This preliminary work is to study relationship between microwave and alkaloid dioscorine of the tuber of Dioscorea hispida. The most widely used standard technique, which is the standard oven drying method, is time consuming and only suitable for laboratory experiment. As an alternative, measurement of moisture content in the tuber of Dioscorea hispida using microwave techniques is proposed. The measurement setup consists of a monopole antenna and a FieldFox RF Analyzer N9912A. This system utilizes a monopole sensor to transmit the microwave signal in the tuber of Dioscorea hispida sample and display the magnitude and phase of the reflection coefficient on the FieldFox. The admittance, on the other hand, is derived from the reflection coefficient measurement. The relationship between the magnitude, phase shift, admittance and moisture contents were studied. The relationships were used to obtain an empirical formula which was used to predict the moisture content in the tuber of Dioscorea hispida.
format Conference or Workshop Item
author Muhammad Hafizi, Mardiah Hafizah
Abbas, Zulkifly
Zainuddin, M. F.
Mohamad Ibrahim, N.
spellingShingle Muhammad Hafizi, Mardiah Hafizah
Abbas, Zulkifly
Zainuddin, M. F.
Mohamad Ibrahim, N.
Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
author_facet Muhammad Hafizi, Mardiah Hafizah
Abbas, Zulkifly
Zainuddin, M. F.
Mohamad Ibrahim, N.
author_sort Muhammad Hafizi, Mardiah Hafizah
title Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
title_short Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
title_full Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
title_fullStr Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
title_full_unstemmed Microwave technique of measuring moisture content in the tuber of Dioscorea hispida using monopole sensor
title_sort microwave technique of measuring moisture content in the tuber of dioscorea hispida using monopole sensor
publisher Faculty of Engineering, Universiti Putra Malaysia
publishDate 2012
url http://psasir.upm.edu.my/id/eprint/50685/1/_TechnicalPapers_CAFEi2012_198.pdf
http://psasir.upm.edu.my/id/eprint/50685/
http://cafei.upm.edu.my/download.php?filename=/TechnicalPapers/CAFEi2012_198.pdf
_version_ 1643834736091594752
score 13.211869

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