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

Qiang Zhang, Yuting Sun, Sune Svanberg

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review

Sammanfattning

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.

Originalspråkengelska
Titel på värdpublikationInternational Conference on Optoelectronic Materials and Devices, ICOMD 2021
RedaktörerYuan Lu, Youlin Gu, Siting Chen
FörlagSPIE
ISBN (elektroniskt)9781510652040
DOI
StatusPublished - 2022
Evenemang2021 International Conference on Optoelectronic Materials and Devices, ICOMD 2021 - Guangzhou, Kina
Varaktighet: 2021 dec. 102021 dec. 12

Publikationsserier

NamnProceedings of SPIE - The International Society for Optical Engineering
Volym12164
ISSN (tryckt)0277-786X
ISSN (elektroniskt)1996-756X

Konferens

Konferens2021 International Conference on Optoelectronic Materials and Devices, ICOMD 2021
Land/TerritoriumKina
OrtGuangzhou
Period2021/12/102021/12/12

Ämnesklassifikation (UKÄ)

  • Atom- och molekylfysik och optik

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