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Determination of moisture content in oil palm fruits using a five-port reflectometer

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Main Authors: Yee, Lee Kim, Zulkifly, Abbas, Mohamad Ashry, Jusoh, You, Kok Yeow, Cheng, Ee Meng
Format: Article
Language:English
Published: MDPI Publishing 2011
Subjects:
Five-port reflectometer
Data acquisition
Coaxial sensor
Graphical programming
Moisture
Monopole sensor
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/12183
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spelling my.unimap-121832011-06-09T05:14:08Z Determination of moisture content in oil palm fruits using a five-port reflectometer Yee, Lee Kim Zulkifly, Abbas Mohamad Ashry, Jusoh You, Kok Yeow Cheng, Ee Meng Five-port reflectometer Data acquisition Coaxial sensor Graphical programming Moisture Monopole sensor Link to publisher's hompage at http://www.mdpi.com/ This paper presents the development of a PC-based microwave five-port reflectometer for the determination of moisture content in oil palm fruits. The reflectometer was designed to measure both the magnitude and phase of the reflection coefficient of any passive microwave device. The stand-alone reflectometer consists of a PC, a microwave source, diode detectors and an analog to digital converter. All the measurement and data acquisition were done using Agilent VEE graphical programming software. The relectometer can be used with any reflection based microwave sensor. In this work, the application of the reflectometer as a useful instrument to determine the moisture content in oil palm fruits using monopole and coaxial sensors was demonstrated. Calibration equations between reflection coefficients and moisture content have been established for both sensors. The equation based on phase measurement of monopole sensor was found to be accurate within 5% in predicting moisture content in the fruits when compared to the conventional oven drying method. 2011-06-09T05:14:08Z 2011-06-09T05:14:08Z 2011-04-06 Article Sensors, vol.11(4), 2011, pages 4073-4085 1424-8220 http://www.mdpi.com/1424-8220/11/4/4073/ http://hdl.handle.net/123456789/12183 en MDPI Publishing
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Five-port reflectometer
Data acquisition
Coaxial sensor
Graphical programming
Moisture
Monopole sensor
spellingShingle Five-port reflectometer
Data acquisition
Coaxial sensor
Graphical programming
Moisture
Monopole sensor
Yee, Lee Kim
Zulkifly, Abbas
Mohamad Ashry, Jusoh
You, Kok Yeow
Cheng, Ee Meng
Determination of moisture content in oil palm fruits using a five-port reflectometer
description Link to publisher's hompage at http://www.mdpi.com/
format Article
author Yee, Lee Kim
Zulkifly, Abbas
Mohamad Ashry, Jusoh
You, Kok Yeow
Cheng, Ee Meng
author_facet Yee, Lee Kim
Zulkifly, Abbas
Mohamad Ashry, Jusoh
You, Kok Yeow
Cheng, Ee Meng
author_sort Yee, Lee Kim
title Determination of moisture content in oil palm fruits using a five-port reflectometer
title_short Determination of moisture content in oil palm fruits using a five-port reflectometer
title_full Determination of moisture content in oil palm fruits using a five-port reflectometer
title_fullStr Determination of moisture content in oil palm fruits using a five-port reflectometer
title_full_unstemmed Determination of moisture content in oil palm fruits using a five-port reflectometer
title_sort determination of moisture content in oil palm fruits using a five-port reflectometer
publisher MDPI Publishing
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/12183
_version_ 1643790617770196992
score 13.235362

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