Triple flat-type inductive-based oil palm fruit maturity sensor
This paper aims to study a triple flat-type air coil inductive sensor that can identify two maturity stages of oil palm fruits, ripe and unripe, based on the resonance frequency and fruitlet capacitance changes. There are two types of triple structure that have been tested, namely Triple I and II. T...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI
2018
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/74346/1/Triple%20flat-type%20inductive-based%20oil%20palm%20fruit%20maturity%20sensor.pdf |
| _version_ | 1796979712941096960 |
|---|---|
| author | Aliteh, Nor Aziana Misron, Norhisam Aris, Ishak Mohd Sidek, Roslina Tashiro, Kunihisa Wakiwaka, Hiroyuki |
| author_facet | Aliteh, Nor Aziana Misron, Norhisam Aris, Ishak Mohd Sidek, Roslina Tashiro, Kunihisa Wakiwaka, Hiroyuki |
| author_sort | Aliteh, Nor Aziana |
| collection | UPM |
| description | This paper aims to study a triple flat-type air coil inductive sensor that can identify two maturity stages of oil palm fruits, ripe and unripe, based on the resonance frequency and fruitlet capacitance changes. There are two types of triple structure that have been tested, namely Triple I and II. Triple I is a triple series coil with a fixed number of turns (n = 200) with different length, and Triple II is a coil with fixed length (l = 5 mm) and a different number of turns. The peak comparison between Triple I and II is using the coefficient of variation cv, which is defined as the ratio of the standard deviation to the mean to express the precision and repeatability of data. As the fruit ripens, the resonance frequency peaks from an inductance–frequency curve and shifts closer to the peak curve of the air, and the fruitlet capacitance decreases. The coefficient of the variation of the inductive oil palm fruit sensor shows that Triple I is smaller and more consistent in comparison with Triple II, for both resonance frequency and fruitlet capacitance. The development of this sensor proves the capability of an inductive element such as a coil, to be used as a sensor so as to determine the ripeness of the oil palm fresh fruit bunch sample. |
| first_indexed | 2024-03-06T10:12:57Z |
| format | Article |
| id | upm.eprints-74346 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:12:57Z |
| publishDate | 2018 |
| publisher | MDPI |
| record_format | dspace |
| spelling | upm.eprints-743462020-04-17T16:51:10Z http://psasir.upm.edu.my/id/eprint/74346/ Triple flat-type inductive-based oil palm fruit maturity sensor Aliteh, Nor Aziana Misron, Norhisam Aris, Ishak Mohd Sidek, Roslina Tashiro, Kunihisa Wakiwaka, Hiroyuki This paper aims to study a triple flat-type air coil inductive sensor that can identify two maturity stages of oil palm fruits, ripe and unripe, based on the resonance frequency and fruitlet capacitance changes. There are two types of triple structure that have been tested, namely Triple I and II. Triple I is a triple series coil with a fixed number of turns (n = 200) with different length, and Triple II is a coil with fixed length (l = 5 mm) and a different number of turns. The peak comparison between Triple I and II is using the coefficient of variation cv, which is defined as the ratio of the standard deviation to the mean to express the precision and repeatability of data. As the fruit ripens, the resonance frequency peaks from an inductance–frequency curve and shifts closer to the peak curve of the air, and the fruitlet capacitance decreases. The coefficient of the variation of the inductive oil palm fruit sensor shows that Triple I is smaller and more consistent in comparison with Triple II, for both resonance frequency and fruitlet capacitance. The development of this sensor proves the capability of an inductive element such as a coil, to be used as a sensor so as to determine the ripeness of the oil palm fresh fruit bunch sample. MDPI 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74346/1/Triple%20flat-type%20inductive-based%20oil%20palm%20fruit%20maturity%20sensor.pdf Aliteh, Nor Aziana and Misron, Norhisam and Aris, Ishak and Mohd Sidek, Roslina and Tashiro, Kunihisa and Wakiwaka, Hiroyuki (2018) Triple flat-type inductive-based oil palm fruit maturity sensor. Sensors, 18. art. no. 2496. pp. 1-18. ISSN 1424-8220 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6111726/pdf/sensors-18-02496.pdf 10.3390/s18082496 |
| spellingShingle | Aliteh, Nor Aziana Misron, Norhisam Aris, Ishak Mohd Sidek, Roslina Tashiro, Kunihisa Wakiwaka, Hiroyuki Triple flat-type inductive-based oil palm fruit maturity sensor |
| title | Triple flat-type inductive-based oil palm fruit maturity sensor |
| title_full | Triple flat-type inductive-based oil palm fruit maturity sensor |
| title_fullStr | Triple flat-type inductive-based oil palm fruit maturity sensor |
| title_full_unstemmed | Triple flat-type inductive-based oil palm fruit maturity sensor |
| title_short | Triple flat-type inductive-based oil palm fruit maturity sensor |
| title_sort | triple flat type inductive based oil palm fruit maturity sensor |
| url | http://psasir.upm.edu.my/id/eprint/74346/1/Triple%20flat-type%20inductive-based%20oil%20palm%20fruit%20maturity%20sensor.pdf |
| work_keys_str_mv | AT alitehnoraziana tripleflattypeinductivebasedoilpalmfruitmaturitysensor AT misronnorhisam tripleflattypeinductivebasedoilpalmfruitmaturitysensor AT arisishak tripleflattypeinductivebasedoilpalmfruitmaturitysensor AT mohdsidekroslina tripleflattypeinductivebasedoilpalmfruitmaturitysensor AT tashirokunihisa tripleflattypeinductivebasedoilpalmfruitmaturitysensor AT wakiwakahiroyuki tripleflattypeinductivebasedoilpalmfruitmaturitysensor |