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Improvement in sensitivity of an inductive oil palm fruit sensor

Among palm oil millers, the ripeness of oil palm Fresh Fruit Bunch (FFB) is determined through visual inspection. To increase the productivity of the millers, many researchers have proposed with a new detection method to replace the conventional one. The sensitivity of such a sensor plays a crucial...

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Main Authors: Misron, Norhisam, Harun, Noor Hasmiza, Yeoh, Kian Lee, Mohd Sidek, Roslina, Aris, Ishak, Wakiwaka, Hiroyuki, Tashiro, Kunihisa
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37979/1/37979.pdf
http://psasir.upm.edu.my/id/eprint/37979/
http://www.mdpi.com/1424-8220/14/2/2431
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spelling my.upm.eprints.379792015-12-29T09:08:36Z http://psasir.upm.edu.my/id/eprint/37979/ Improvement in sensitivity of an inductive oil palm fruit sensor Misron, Norhisam Harun, Noor Hasmiza Yeoh, Kian Lee Mohd Sidek, Roslina Aris, Ishak Wakiwaka, Hiroyuki Tashiro, Kunihisa Among palm oil millers, the ripeness of oil palm Fresh Fruit Bunch (FFB) is determined through visual inspection. To increase the productivity of the millers, many researchers have proposed with a new detection method to replace the conventional one. The sensitivity of such a sensor plays a crucial role in determining the effectiveness of the method. In our preliminary study a novel oil palm fruit sensor to detect the maturity of oil palm fruit bunches is proposed. The design of the proposed air coil sensor based on an inductive sensor is further investigated to improve its sensitivity. This paper investigates the results pertaining to the effects of the air coil structure of an oil palm fruit sensor, taking consideration of the used copper wire diameter ranging from 0.10 mm to 0.18 mm with 60 turns. The flat-type shape of air coil was used on twenty samples of fruitlets from two categories, namely ripe and unripe. Samples are tested with frequencies ranging from 20 Hz to 120 MHz. The sensitivity of the sensor between air to fruitlet samples increases as the coil diameter increases. As for the sensitivity differences between ripe and unripe samples, the 5 mm air coil length with the 0.12 mm coil diameter provides the highest percentage difference between samples and it is amongst the highest deviation value between samples. The result from this study is important to improve the sensitivity of the inductive oil palm fruit sensor mainly with regards to the design of the air coil structure. The efficiency of the sensor to determine the maturity of the oil palm FFB and the ripening process of the fruitlet could further be enhanced. Multidisciplinary Digital Publishing Institute 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37979/1/37979.pdf Misron, Norhisam and Harun, Noor Hasmiza and Yeoh, Kian Lee and Mohd Sidek, Roslina and Aris, Ishak and Wakiwaka, Hiroyuki and Tashiro, Kunihisa (2014) Improvement in sensitivity of an inductive oil palm fruit sensor. Sensors, 14 (2). pp. 2431-2448. ISSN 1424-8220 http://www.mdpi.com/1424-8220/14/2/2431 10.3390/s140202431
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 Among palm oil millers, the ripeness of oil palm Fresh Fruit Bunch (FFB) is determined through visual inspection. To increase the productivity of the millers, many researchers have proposed with a new detection method to replace the conventional one. The sensitivity of such a sensor plays a crucial role in determining the effectiveness of the method. In our preliminary study a novel oil palm fruit sensor to detect the maturity of oil palm fruit bunches is proposed. The design of the proposed air coil sensor based on an inductive sensor is further investigated to improve its sensitivity. This paper investigates the results pertaining to the effects of the air coil structure of an oil palm fruit sensor, taking consideration of the used copper wire diameter ranging from 0.10 mm to 0.18 mm with 60 turns. The flat-type shape of air coil was used on twenty samples of fruitlets from two categories, namely ripe and unripe. Samples are tested with frequencies ranging from 20 Hz to 120 MHz. The sensitivity of the sensor between air to fruitlet samples increases as the coil diameter increases. As for the sensitivity differences between ripe and unripe samples, the 5 mm air coil length with the 0.12 mm coil diameter provides the highest percentage difference between samples and it is amongst the highest deviation value between samples. The result from this study is important to improve the sensitivity of the inductive oil palm fruit sensor mainly with regards to the design of the air coil structure. The efficiency of the sensor to determine the maturity of the oil palm FFB and the ripening process of the fruitlet could further be enhanced.
format Article
author Misron, Norhisam
Harun, Noor Hasmiza
Yeoh, Kian Lee
Mohd Sidek, Roslina
Aris, Ishak
Wakiwaka, Hiroyuki
Tashiro, Kunihisa
spellingShingle Misron, Norhisam
Harun, Noor Hasmiza
Yeoh, Kian Lee
Mohd Sidek, Roslina
Aris, Ishak
Wakiwaka, Hiroyuki
Tashiro, Kunihisa
Improvement in sensitivity of an inductive oil palm fruit sensor
author_facet Misron, Norhisam
Harun, Noor Hasmiza
Yeoh, Kian Lee
Mohd Sidek, Roslina
Aris, Ishak
Wakiwaka, Hiroyuki
Tashiro, Kunihisa
author_sort Misron, Norhisam
title Improvement in sensitivity of an inductive oil palm fruit sensor
title_short Improvement in sensitivity of an inductive oil palm fruit sensor
title_full Improvement in sensitivity of an inductive oil palm fruit sensor
title_fullStr Improvement in sensitivity of an inductive oil palm fruit sensor
title_full_unstemmed Improvement in sensitivity of an inductive oil palm fruit sensor
title_sort improvement in sensitivity of an inductive oil palm fruit sensor
publisher Multidisciplinary Digital Publishing Institute
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37979/1/37979.pdf
http://psasir.upm.edu.my/id/eprint/37979/
http://www.mdpi.com/1424-8220/14/2/2431
_version_ 1643832114900107264
score 13.211869

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