Abstract
In this paper, the concept design of intelligent technical textile blocks implemented with optical fibers that include fiber Bragg gratings for strain and temperature sensing is briefly introduced. In addition to the main design of the system, a design of measurement blocks with integrated fiber Bragg grating elements for strain measurement is also presented. In the basic measurement, the created textile block was tested for deformation sensitivity when a load was applied. Moreover, a unique robust and low profile connector was designed, created and verified. The fibers are terminated with GRIN lenses, allowing easy manipulation and completion of the connector in the field, with an average insertion loss of 5.5 dB.
Highlights
Intelligent technical textiles are functional industrial textiles implemented with optical sensor elements for distributed and quasi-distributed sensing of temperature, pressure, deformations, and chemical changes for monitoring of critical infrastructures or their surrounding environment
The main contribution of this paper is the presentation of a concept design for temperature and strain monitoring by fiber Bragg grating (FBG) sensing elements implemented in nonwoven textiles and verification measurement of strain applied to the textiles
Because we consider more technical textiles blocks in series, we proposed special connector based on grin-lenses technology
Summary
Intelligent technical textiles are functional industrial textiles implemented with optical sensor elements for distributed and quasi-distributed sensing of temperature, pressure, deformations, and chemical changes (leakage of liquids, vapor, etc.) for monitoring of critical infrastructures or their surrounding environment. Several papers describe fiber Bragg grating (FBG)-based smart textiles for various types of applications. The authors in [1] describe FBG-based smart textiles for monitoring respiratory movements for healthcare applications. In [15], the authors precisely describe wearable fiber optic technology based on smart textiles for fashion and aesthetic purposes, disease treatment, and healthcare monitoring. The authors in [17] describe smart textiles based on fiber optic technology for medical applications. The motivation of the paper is to verify the design of an intelligent textile block with FBG elements and a new type of fiber optic connector for connecting multiple blocks together. The main contribution of this paper is the presentation of a concept design for temperature and strain monitoring by FBG sensing elements implemented in nonwoven textiles and verification measurement of strain applied to the textiles.
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