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Compact Fluorosensor for Close-Range Remote-Sensing Characterization of Fruits

Zhang, Qiang ; Sun, Yuting and Svanberg, Sune LU (2022) 2021 International Conference on Optoelectronic Materials and Devices, ICOMD 2021 In Proceedings of SPIE - The International Society for Optical Engineering 12164.
Abstract

The ripeness of fruits is commonly assessed by the visual appearance, but this method is not very accurate and there can be a large variability. We have developed a hand-held sensor based on laser-induced fluorescence to provide more objective guidance. The instrument incorporates a 412 nm continuous wave semiconductor laser and a miniature spectrometer. It was used for monitoring of tropical fruits growing on the tree, and high-quality spectra could be recorded at ranges of 1-2 meters. The spectra feature characteristic dual-peaked emission peaks in the near-IR region due to chlorophyll, as well as blue-green signals due to further pigments. Further, natural waters were studied and showed strong differentiation effects.

Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Fruit characterization, Laser-induced fluorescence, Remote sensing
host publication
International Conference on Optoelectronic Materials and Devices, ICOMD 2021
series title
Proceedings of SPIE - The International Society for Optical Engineering
editor
Lu, Yuan ; Gu, Youlin and Chen, Siting
volume
12164
article number
1216403
publisher
SPIE
conference name
2021 International Conference on Optoelectronic Materials and Devices, ICOMD 2021
conference location
Guangzhou, China
conference dates
2021-12-10 - 2021-12-12
external identifiers
  • scopus:85125587257
ISSN
1996-756X
0277-786X
ISBN
9781510652040
DOI
10.1117/12.2628584
language
English
LU publication?
yes
id
742e6c3a-c38d-4859-b49a-ec691cf0a5c6
date added to LUP
2022-04-14 13:05:41
date last changed
2024-06-06 01:07:55
@inproceedings{742e6c3a-c38d-4859-b49a-ec691cf0a5c6,
  abstract     = {{<p>The ripeness of fruits is commonly assessed by the visual appearance, but this method is not very accurate and there can be a large variability. We have developed a hand-held sensor based on laser-induced fluorescence to provide more objective guidance. The instrument incorporates a 412 nm continuous wave semiconductor laser and a miniature spectrometer. It was used for monitoring of tropical fruits growing on the tree, and high-quality spectra could be recorded at ranges of 1-2 meters. The spectra feature characteristic dual-peaked emission peaks in the near-IR region due to chlorophyll, as well as blue-green signals due to further pigments. Further, natural waters were studied and showed strong differentiation effects.</p>}},
  author       = {{Zhang, Qiang and Sun, Yuting and Svanberg, Sune}},
  booktitle    = {{International Conference on Optoelectronic Materials and Devices, ICOMD 2021}},
  editor       = {{Lu, Yuan and Gu, Youlin and Chen, Siting}},
  isbn         = {{9781510652040}},
  issn         = {{1996-756X}},
  keywords     = {{Fruit characterization; Laser-induced fluorescence; Remote sensing}},
  language     = {{eng}},
  publisher    = {{SPIE}},
  series       = {{Proceedings of SPIE - The International Society for Optical Engineering}},
  title        = {{Compact Fluorosensor for Close-Range Remote-Sensing Characterization of Fruits}},
  url          = {{http://dx.doi.org/10.1117/12.2628584}},
  doi          = {{10.1117/12.2628584}},
  volume       = {{12164}},
  year         = {{2022}},
}