Citation
Abstract
As the main exporter in the oil palm industry, the need to improve the quality of palm oil has become the main interest among all the palm oil millers in Malaysia. To produce good quality palm oil, it is important for the miller to harvest a good oil palm Fresh Fruit Bunch (FFB). Conventionally, the main reference used by Malaysian harvesters is the manual grading standard published by the Malaysian Palm Oil Board (MPOB). A good oil palm FFB consists of all matured fruitlets, aged between 18 to 21 weeks of antheses (WAA). To expedite the harvesting process, it is crucial to implement an automated detection system for determining the maturity of the oil palm FFB. Various automated detection methods have been proposed by researchers in the field to replace the conventional method. In our preliminary study, a novel oil palm fruit sensor to detect the maturity of oil palm fruit bunch was proposed. The design of the proposed air coil sensor based on the inductive sensor was further investigated mainly in the context of the effect of coil diameter to improve its sensitivity. In this paper, the sensitivity of the inductive sensor was further examined with a dual flat-type shape of air coil. The dual air coils were tested on fifteen samples of fruitlet from two categories, namely ripe and unripe. Samples were tested within 20 Hz to 10 MHz while evaluations on both peaks were done separately before the gap between peaks was analyzed. A comparative analysis was conducted to investigate the improvement in sensitivity of the induction-based oil palm fruit sensor as compared to previous works. Results from the comparative study proved that the inductive sensor using a dual flat-type shape air coil has improved by up to 167%. This provides an indication in the improvement in the coil sensitivity of the palm oil fruit sensor based on the induction concept.
Download File
Official URL or Download Paper: http://www.mdpi.com/1424-8220/14/11/21923
|
Additional Metadata
Item Type: | Article |
---|---|
Divisions: | Faculty of Engineering Institute of Advanced Technology |
DOI Number: | https://doi.org/10.3390/s141121923 |
Publisher: | Multidisciplinary Digital Publishing Institute |
Keywords: | Air coil; Frequency characteristics; Induction; Inductive concepts; Maturity classification; Oil palm; Resonant frequency |
Depositing User: | Nabilah Mustapa |
Date Deposited: | 18 Dec 2015 03:59 |
Last Modified: | 18 Dec 2015 03:59 |
Altmetrics: | http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/s141121923 |
URI: | http://psasir.upm.edu.my/id/eprint/37170 |
Statistic Details: | View Download Statistic |
Actions (login required)
![]() |
View Item |