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Infrared Sensor Technologies and Applications

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

Deadline for manuscript submissions: closed (30 July 2021) | Viewed by 4044

Special Issue Editor


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Guest Editor
University of Rennes 1, CNRS, Institut Foton – UMR 6082, F-22305 Lannion, France
Interests: guided optic; optical sensors; (near and mid-) infrared (IR) integrated light sources; nonlinear micro-photonics; photonic integrated circuit

Special Issue Information

Dear Colleagues,

Highly sensitive optical sensors have received great interest during these last years. In particular, the ability to rapidly detect, identify and monitor chemical or biological species is imperative for environmental, health monitoring and security applications. The detection of traces of (bio)-chemical molecules requires sample preparation procedures combined with sophisticated analytical tools that can detect, within an acceptable time, disease biomarkers, emerging pollutants, chemical warfare agents or toxic industrial chemicals with high sensitivity to really detect low concentrations with high selectivity not to be affected by other factors in the environment.

Many molecules can be detected in the mid-infrared (mid-IR) because of their characteristic absorption bands, creating a unique molecular fingerprint. Photonic devices operating in the mid-infrared (mid-IR) are currently developed for infrared sensor applications.

We invite manuscripts for this forthcoming Special Issue in all pertinent aspects concerning infrared sensor technologies and applications. Both reviews and original research articles are welcome. We look forward to and welcome your participation in this Special Issue.

Prof. Dr. Joël Charrier
Guest Editor

Manuscript Submission Information

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Keywords

  • mid-infrared applications
  • sensing
  • fiber
  • photonic integrated circuit
  • integrated light sources
  • nonlinear effect
  • optical simulation

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Published Papers (1 paper)

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Research

19 pages, 4617 KiB  
Article
Evaluation of the Uniformity of Protective Coatings on Concrete Structure Surfaces Based on Cluster Analysis
by Dunwen Liu, Wanmao Zhang, Yu Tang, Yinghua Jian, Chun Gong and Fengkai Qiu
Sensors 2021, 21(16), 5652; https://doi.org/10.3390/s21165652 - 22 Aug 2021
Cited by 1 | Viewed by 3129
Abstract
With the continuous development of urbanization and industrialization in the world, concrete is widely used in various engineering constructions as an engineering material. However, the consequent problem of durability of concrete structures is also becoming increasingly prominent. As an important additional measure, a [...] Read more.
With the continuous development of urbanization and industrialization in the world, concrete is widely used in various engineering constructions as an engineering material. However, the consequent problem of durability of concrete structures is also becoming increasingly prominent. As an important additional measure, a protective coating can effectively improve the durability of concrete performance. Moreover, the uniformity of the concrete surface coating will directly affect its protective effect. Therefore, we propose a nondestructive inspection and evaluation method of coating uniformity based on infrared imaging and cluster analysis for concrete surface coating uniformity detection and evaluation. Based on the obtained infrared images, a series of processing and analysis of the images were carried out using MATLAB software to obtain the characteristics of the infrared images of the concrete surface. Finally, by extracting the temperature distribution data of the pixel points on the concrete surface, an evaluation method of concrete surface coating uniformity based on a combination of cluster analysis and hierarchical analysis was established. The evaluation results show that the determination results obtained by this method are consistent with the actual situation. This study has a positive contribution to the testing of concrete surface coating uniformity and its evaluation. Full article
(This article belongs to the Special Issue Infrared Sensor Technologies and Applications)
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