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The load monitoring using fiber optic technology

The load monitoring using fiber optic technology 30.05.2014

The load monitoring using fiber optic technology

When calculating the optimal size of the design plays a considerable role in effective experimental analysis of stress-strain States. Monitoring load plays a primary role in the evaluation of the service life of the structure and its condition in real conditions or when exposed to high loads.

Analysis of stress-strain States with the use of electrical deformation sensors (strain gages) at the moment is a reliable and proven method of analysis of the nature of loadings in structural mechanics.

To determine the mechanical load of the structures or components of the most convenient strain gages, because with their help it is possible to detect even the most minor deformities. The quality and reliability of sensors used determines the service life of structures. Amid the proliferation of lightweight materials are being increasingly widely used fiber optic sensors (strain gauges).

The reasons are as follows:

  • The small weight of optical strain sensors, cables and data acquisition unit and simple installation of
  • The fatigue characteristics of the optical strain gages subjected to high mechanical deformations
  • This article is devoted to theoretical and experimental studies of optical strain gauges based on Bragg gratings. The article also discusses some of the factors influencing transformation of deformation of a test sample using fiber optic sensors. Furthermore, the goal of the presentation is to attract interest in the subject experts in various fields. Keywords: fiber Bragg grating, strength tests, measurement of strain, fatigue.

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