A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits
The conventional method to determine ripeness of the oil palm bunch is by using the number or percentage of detached fruits per bunch. However the method has the disadvantage that it does not relate to oil quantity and quality. Previous work has shown a close relationship between oil content and...
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English English |
| Published: |
1994
|
| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/8584/1/FSAS_1994_2_A.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my-upm-ir.8584 |
|---|---|
| record_format |
uketd_dc |
| spelling |
my-upm-ir.85842012-06-11T06:39:35Z A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits 1994 Abbas, Zulkifly The conventional method to determine ripeness of the oil palm bunch is by using the number or percentage of detached fruits per bunch. However the method has the disadvantage that it does not relate to oil quantity and quality. Previous work has shown a close relationship between oil content and moisture content during fruit development. Thus,the oil content and subsequently the time to harvest the fruit bunch can be determined from moisture measurements. In this study, a microstrip sensor has been developed to determine the optimum time of harvesting the oil palm fruits based on microwave attenuation. The sensor operating at 10.7GHz was fabricated using RT-Duroidsubtrate and is suitable for single fruit measurements. A theoretical analysis has been carried out to predict the variation in at tenuati on with moisture content in the fruit mesocarp. The propagation of the electromagnetic wave in the microstripis based on quasi - transverse electromagnetic mode (TEM mode) and the at tenuation is obtained by using signal flow graph technique. Oil Palm. Strip transmission lines. 1994 Thesis http://psasir.upm.edu.my/id/eprint/8584/ http://psasir.upm.edu.my/id/eprint/8584/1/FSAS_1994_2_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Oil Palm. Strip transmission lines. Faculty of Environmental Studies English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| topic |
Oil Palm. Strip transmission lines. |
| spellingShingle |
Oil Palm. Strip transmission lines. Abbas, Zulkifly A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| description |
The conventional method to determine ripeness of the oil
palm bunch is by using the number or percentage of detached
fruits per bunch. However the method has the disadvantage that
it does not relate to oil quantity and quality. Previous work has
shown a close relationship between oil content and moisture
content during fruit development. Thus,the oil content and
subsequently the time to harvest the fruit bunch can be
determined from moisture measurements.
In this study, a microstrip sensor has been developed to
determine the optimum time of harvesting the oil palm fruits
based on microwave attenuation. The sensor operating at 10.7GHz
was fabricated using RT-Duroidsubtrate and is suitable for
single fruit measurements. A theoretical analysis has been carried out to predict the variation in at tenuati on with moisture
content in the fruit mesocarp. The propagation of the
electromagnetic wave in the microstripis based on
quasi - transverse electromagnetic mode (TEM mode) and the
at tenuation is obtained by using signal flow graph technique. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Abbas, Zulkifly |
| author_facet |
Abbas, Zulkifly |
| author_sort |
Abbas, Zulkifly |
| title |
A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| title_short |
A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| title_full |
A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| title_fullStr |
A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| title_full_unstemmed |
A Microstrip Sensor for Determination of Harvesting Time for Oil Palm Fruits |
| title_sort |
microstrip sensor for determination of harvesting time for oil palm fruits |
| granting_institution |
Universiti Pertanian Malaysia |
| granting_department |
Faculty of Environmental Studies |
| publishDate |
1994 |
| url |
http://psasir.upm.edu.my/id/eprint/8584/1/FSAS_1994_2_A.pdf |
| _version_ |
1747810832086990848 |