Microcontroller-based moisture meter for ginger

This paper describes the development of a simple method to determine the permittivity and moisture content (m.c.) of ginger. The measurement system consists of a microwave sensor, directional coupler and a PIC microcontroller. The microwave sensor is a square flanged open-ended coaxial (OEC) sensor...

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Main Authors:	Nur Biha Mohamed Nafis, Zulkifly Abbas, Jumiah Hassan, Noradira Suhaime, Lee, Kim Yee, You, Kok Yeow, Zaulia Othman
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/12665/ http://journalarticle.ukm.my/12665/ http://journalarticle.ukm.my/12665/1/26%20Nur%20Biha%20Mohamed%20Nafis.pdf

id	ukm-12665
recordtype	eprints
spelling	ukm-126652019-03-17T11:59:12Z http://journalarticle.ukm.my/12665/ Microcontroller-based moisture meter for ginger Nur Biha Mohamed Nafis, Zulkifly Abbas, Jumiah Hassan, Noradira Suhaime, Lee, Kim Yee You, Kok Yeow Zaulia Othman, This paper describes the development of a simple method to determine the permittivity and moisture content (m.c.) of ginger. The measurement system consists of a microwave sensor, directional coupler and a PIC microcontroller. The microwave sensor is a square flanged open-ended coaxial (OEC) sensor made from SMA stub contact panel with outer diameter (O.D) 4.10 mm. The microwave oven drying method was used to determine the actual m.c. of the ginger. All data acquisition, processing and display were accomplished using a PIC 16F690 microcontroller programmed using Flowcode software. The actual values of the permittivity of ginger were obtained by using the Agilent (now Keysight Technologies) 85070B dielectric probe along with a HP 8720B Vector Network Analyzer (VNA). The results showed good relationships between m.c., permittivity (dielectric constant (εʹ) and loss factor (ε̋)) and reflected voltage. The calibration equations between reflected voltage and m.c. have been established for the sensor. The measurement system provides a simple, fast and accurate technique to predict m.c., εʹ and ε̋ of ginger from reflected voltage measurements alone. The accuracy in determination of m.c., εʹ and ε̋ in ginger was within 2.9%, 2.7%, and 3.6%, respectively. Penerbit Universiti Kebangsaan Malaysia 2018-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12665/1/26%20Nur%20Biha%20Mohamed%20Nafis.pdf Nur Biha Mohamed Nafis, and Zulkifly Abbas, and Jumiah Hassan, and Noradira Suhaime, and Lee, Kim Yee and You, Kok Yeow and Zaulia Othman, (2018) Microcontroller-based moisture meter for ginger. Sains Malaysiana, 47 (11). pp. 2831-2840. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid47bil11_2018/KandunganJilid47Bil11_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This paper describes the development of a simple method to determine the permittivity and moisture content (m.c.) of ginger. The measurement system consists of a microwave sensor, directional coupler and a PIC microcontroller. The microwave sensor is a square flanged open-ended coaxial (OEC) sensor made from SMA stub contact panel with outer diameter (O.D) 4.10 mm. The microwave oven drying method was used to determine the actual m.c. of the ginger. All data acquisition, processing and display were accomplished using a PIC 16F690 microcontroller programmed using Flowcode software. The actual values of the permittivity of ginger were obtained by using the Agilent (now Keysight Technologies) 85070B dielectric probe along with a HP 8720B Vector Network Analyzer (VNA). The results showed good relationships between m.c., permittivity (dielectric constant (εʹ) and loss factor (ε̋)) and reflected voltage. The calibration equations between reflected voltage and m.c. have been established for the sensor. The measurement system provides a simple, fast and accurate technique to predict m.c., εʹ and ε̋ of ginger from reflected voltage measurements alone. The accuracy in determination of m.c., εʹ and ε̋ in ginger was within 2.9%, 2.7%, and 3.6%, respectively.
format	Article
author	Nur Biha Mohamed Nafis, Zulkifly Abbas, Jumiah Hassan, Noradira Suhaime, Lee, Kim Yee You, Kok Yeow Zaulia Othman,
spellingShingle	Nur Biha Mohamed Nafis, Zulkifly Abbas, Jumiah Hassan, Noradira Suhaime, Lee, Kim Yee You, Kok Yeow Zaulia Othman, Microcontroller-based moisture meter for ginger
author_facet	Nur Biha Mohamed Nafis, Zulkifly Abbas, Jumiah Hassan, Noradira Suhaime, Lee, Kim Yee You, Kok Yeow Zaulia Othman,
author_sort	Nur Biha Mohamed Nafis,
title	Microcontroller-based moisture meter for ginger
title_short	Microcontroller-based moisture meter for ginger
title_full	Microcontroller-based moisture meter for ginger
title_fullStr	Microcontroller-based moisture meter for ginger
title_full_unstemmed	Microcontroller-based moisture meter for ginger
title_sort	microcontroller-based moisture meter for ginger
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/12665/ http://journalarticle.ukm.my/12665/ http://journalarticle.ukm.my/12665/1/26%20Nur%20Biha%20Mohamed%20Nafis.pdf
first_indexed	2023-09-18T20:03:07Z
last_indexed	2023-09-18T20:03:07Z
_version_	1777406980869062656

Microcontroller-based moisture meter for ginger

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