Open AccessReflective fiber-optic sensor for on-line nondestructive monitoring of Aspergillus on the surface of cultural paper relics
Author(s) -
Qiuhui Yu,
Zhengda Xue,
Rong Hu,
Nianbing Zhong,
Tan Zeng,
Huan Tang,
Ya Zhao,
Mingfu Zhao
Publication year - 2022
Publication title -
biomedical optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.362
H-Index - 86
ISSN - 2156-7085
DOI - 10.1364/boe.457037
Subject(s) - optical fiber , fiber optic sensor , aspergillus niger , aspergillus flavus , materials science , optics , aspergillus , nondestructive testing , signal (programming language) , optoelectronics , computer science , microbiology and biotechnology , physics , chemistry , biology , quantum mechanics , programming language , biochemistry
A reflective fiber-optic sensor was created to realize on-line nondestructive monitoring of the growth process of Aspergillus on the surface of cultural paper relics. The sensor consisted of one tapered input and six output optical fibers. The operating principle of the device was established. The sensitivity of the sensor was checked. Sensors were used to monitor the growth of Aspergillus niger , Aspergillus flavus , and Aspergillus tamarrii on the papers. The morphology of Aspergillus was characterized. The sensor reveals a linear relationship between the output signal of the sensor and the thickness of Aspergillus biofilm with a detection limit of 10 µm.