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Precise Fiber Optic Sensors for Industrial, Environmental and Health Monitoring

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Optical Sensors".

Deadline for manuscript submissions: closed (20 November 2022) | Viewed by 2372

Special Issue Editors

Department of Mechanical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
Interests: material engineering; plasma surface modification
Department of Electronic Engineering, MingHsin University of Science and Technology, Hsinchu 304, Taiwan
Interests: fiber-optic sensors; VLSI/nano-node process integration; nano-Si device design; semiconductor physics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Advances in bio, medicine, science, environment, petroleum or civil engineering, health monitoring, and industry in measurement or system integration are mandatory to develop the precise sensing capability for the minimal level of tested species. In terms of sensors, besides the sensing sensitivity and accuracy, the undisturbed function to the device-under-test is essential. The fiber-optic (FO) sensor technology richly meets these high expectations. Due to the desire to shrink the amount, size, or space of tested samples in each sensing field, the novel sensing theory, fabrication technologies, sensing materials in interface, mathematic algorithm, and characteristic extraction in FO sensors are demonstrated. Each FO sensing part is important to impact the sensing precision and incorporation. Through contributors’ efforts, the pertinent achievements of FO sensors in the development of sensing systems beneficial to the human beings are tremendous.

The upcoming Special Issue will offer a friendly and open platform for research on all types of FO sensors designed for sensing precise parameters or system integration, trends in the applications of FO sensors, and discussion on the future directions for sensing metro.

Prof. Dr. Chii-Ruey Lin
Prof. Dr. Mu-Chun Wang
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fiber optic or fiber-grating sensors
  • semiconductor, bio, and chemical refractometry sensors
  • fiber-optic theory, fabrication technologies, and properties
  • environment, petroleum or civil engineering, health monitoring with FO sensors
  • fluid, mechanical, and physical sensors
  • electronic transceivers/optical communication devices/sensing interface
  • exceptional optic sensors

Published Papers (1 paper)

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Research

21 pages, 2688 KiB  
Article
Extension of Duplexed Single-Ended Distributed Temperature Sensing Calibration Algorithms and Their Application in Geothermal Systems
by Matías Lillo, Francisco Suárez, Mark B. Hausner, Gonzalo Yáñez and Eugenio A. Veloso
Sensors 2022, 22(9), 3319; https://doi.org/10.3390/s22093319 - 26 Apr 2022
Cited by 5 | Viewed by 1581
Abstract
Fiber-optic distributed temperature sensing (DTS) has been widely used since the end of the 20th century, with various industrial, Earth sciences, and research applications. To obtain precise thermal measurements, it is important to extend the currently available DTS calibration methods, considering that environmental [...] Read more.
Fiber-optic distributed temperature sensing (DTS) has been widely used since the end of the 20th century, with various industrial, Earth sciences, and research applications. To obtain precise thermal measurements, it is important to extend the currently available DTS calibration methods, considering that environmental and deployment factors can strongly impact these measurements. In this work, a laboratory experiment was performed to assess a currently available duplexed single-ended DTS calibration algorithm and to extend it in case no temperature information is available at the end of the cables, which is extremely important in geothermal applications. The extended calibration algorithms were tested in different boreholes located in the Atacama Desert and in the Central Andes Mountains to estimate the geothermal gradient in these regions. The best algorithm found achieved a root mean square error of 0.31 ± 0.07 °C at the far end of a ~1.1-km cable, which is much smaller than that obtained using the manufacturer algorithm (2.17 ± 0.35 °C). Moreover, temperature differences between single- and double-ended measurements were less than 0.3 °C at the far end of the cable, which results in differences of ~0.5 °C km−1 when determining the geothermal gradient. This improvement in the geothermal gradient is relevant, as it can reduce the drilling depth by at least 700 m in the study area. Future work should investigate new extensions of the algorithms for other DTS configurations and determining the flow rate of the Central Andes Mountains artesian well using the geothermal profile provided by the DTS measurements and the available data of the borehole Full article
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