Evaluation of an optical sensor for tuber yield monitoring
Persson, Andreas LU ; Eklundh, Lars LU
and Algerbo, Per-Anders
(2004)
In Transactions of the Asae
47(5).
p.1851-1856
- Abstract
- A sensor for monitoring the yield of tubers was tested in the laboratory and in the field. The laboratory test was designed to investigate whether the sensor varied in its measurements of tuber size, whether the recorded size differed within the width of the sensor, and whether tilting of the sensor affected the result. The test objects were spheres, and measurements were carried out on three different sizes. A statistical analysis showed how the sensor measured the sizes for the different combinations of size, position, and inclination. In the field, a harvester-mounted sensor was used to monitor yield of Bintje potatoes in terms of tuber size and weight. The results obtained were compared with those from mechanical load-cell... (More)
- A sensor for monitoring the yield of tubers was tested in the laboratory and in the field. The laboratory test was designed to investigate whether the sensor varied in its measurements of tuber size, whether the recorded size differed within the width of the sensor, and whether tilting of the sensor affected the result. The test objects were spheres, and measurements were carried out on three different sizes. A statistical analysis showed how the sensor measured the sizes for the different combinations of size, position, and inclination. In the field, a harvester-mounted sensor was used to monitor yield of Bintje potatoes in terms of tuber size and weight. The results obtained were compared with those from mechanical load-cell measurements. An expression relating tuber size to weight was determined. Plot-harvesting tubers provided data for evaluation of tuber size in relation to yield. The results showed that the errors in size determination by the sensor were in the order of 1% to 2%. Different size classes were well differentiated. Some differences were noted for object position and sensor inclination. Field tests showed that the mean deviation from measured weight was about 1%. It was concluded that sensor errors were small and that the sensor could discriminate between different sizes for the spheres used in the study. In the field, the sensor worked with good consistency and is a potential option for tuber yield monitoring. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/260385
- author
- Persson, Andreas
LU
; Eklundh, Lars
LU
and Algerbo, Per-Anders
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- optical sensor potato, tuber, yield monitoring
- in
- Transactions of the Asae
- volume
- 47
- issue
- 5
- pages
- 1851 - 1856
- publisher
- American Society of Agricultural and Biological Engineers
- external identifiers
-
- wos:000225002700047
- scopus:11144285945
- ISSN
- 0001-2351
- language
- English
- LU publication?
- yes
- id
- fa331922-1ff2-4a28-a548-3482d6966ed6 (old id 260385)
- alternative location
- http://asae.frymulti.com/abstract.asp?aid=17602&t=1
- date added to LUP
- 2016-04-01 16:15:43
- date last changed
- 2022-01-28 18:28:33
@article{fa331922-1ff2-4a28-a548-3482d6966ed6,
abstract = {{A sensor for monitoring the yield of tubers was tested in the laboratory and in the field. The laboratory test was designed to investigate whether the sensor varied in its measurements of tuber size, whether the recorded size differed within the width of the sensor, and whether tilting of the sensor affected the result. The test objects were spheres, and measurements were carried out on three different sizes. A statistical analysis showed how the sensor measured the sizes for the different combinations of size, position, and inclination. In the field, a harvester-mounted sensor was used to monitor yield of Bintje potatoes in terms of tuber size and weight. The results obtained were compared with those from mechanical load-cell measurements. An expression relating tuber size to weight was determined. Plot-harvesting tubers provided data for evaluation of tuber size in relation to yield. The results showed that the errors in size determination by the sensor were in the order of 1% to 2%. Different size classes were well differentiated. Some differences were noted for object position and sensor inclination. Field tests showed that the mean deviation from measured weight was about 1%. It was concluded that sensor errors were small and that the sensor could discriminate between different sizes for the spheres used in the study. In the field, the sensor worked with good consistency and is a potential option for tuber yield monitoring.}},
author = {{Persson, Andreas and Eklundh, Lars and Algerbo, Per-Anders}},
issn = {{0001-2351}},
keywords = {{optical sensor potato; tuber; yield monitoring}},
language = {{eng}},
number = {{5}},
pages = {{1851--1856}},
publisher = {{American Society of Agricultural and Biological Engineers}},
series = {{Transactions of the Asae}},
title = {{Evaluation of an optical sensor for tuber yield monitoring}},
url = {{http://asae.frymulti.com/abstract.asp?aid=17602&t=1}},
volume = {{47}},
year = {{2004}},
}