Abstract
This article describes the results of theoretical researches of the system of optical testing of polymer composites by the method of two optical fibers with different sensitivity to deformation and temperature, using integrated arrays of fiber Bragg gratings. The features of the primary data processing from the optical testing system embedded into the composite are considered by the methods of weighted arithmetic mean and approximation by the Gaussian function. The basic relations for calculating the error in determining the temperature and strain with the help of fiber-optic embedded testing systems are obtained. A numerical model of the interrogator has been constructed, which makes it possible to estimate the systematic error of deformation and temperature measurements, including taking into account the noise of a real interrogator. It is shown that, taking into account a number of assumptions for the problem of simultaneous embedded testing of composites with fiber Bragg gratings, it is advisable to apply he method of primary processing of testing data using the approximation of the real spectra of fiber Bragg gratings by the Gaussian function, while in order to increase the reliability of testing, it is necessary to take into account the temperature correction characteristic of a particular interrogating device.
Publisher
Izdatel'skii dom Spektr, LLC
Subject
General Medicine,General Chemistry
Reference14 articles.
1. Skleznev A. A., Chervyakov A. A., Agapov I. G. (2022). Solving the optimization problem for the design of a mesh structure made of polymer composites with an outer skin. Nauchniy vestnik Moskovskogo gosudarstvennogo tekhnicheskogo universiteta grazhdanskoy aviatsii, Vol. 25 (4), pp. 70 – 82. [in Russian language]. DOI: 10.26467/2079-0619-2022-25-4-70-82. EDN XEKPCU.
2. Valueva M. I., Zelenina I. V., Nacharkina A. V., Ahmadieva K. R. (2022). Technological features of production of high-temperature polyimide carbon plastics. Foreign experience (review). Trudy VIAM, 112(6), pp. 80 – 95. [in Russian language] DOI: 10.18577/2307-6046-2022-0-6-80-95. EDN UYLWDH.
3. Gulyaev I. N. (2010). Carbon strain gauge embedded sensor elements for monitoring high-stress structures made of carbon fiber reinforced plastics. Zavodskaya laboratoriya. Diagnostika materialov, Vol. 76 (10), pp. 46 – 51. [in Russian language] EDN MWHUIZ.
4. Ruzakov I. A. (2019). Monitoring of the deformation state of pcm structural elements based on fiber optic sensors: an overview. Trudy VIAM, 76(4), pp. 88 – 98. [in Russian language] DOI: 10.18577/2307-6046-2019-0-4-88-98. EDN RPTDBX.
5. Aniskovich V. A., Budadin O. N., Kozel'skaya S. O. et al. (2022). Identification of temperature sensitivity detector on fiber Bragg grating (FBG) sensor. Kontrol'. Diagnostika, Vol. 25 287(5), pp. 26 – 33. [in Russian language]. DOI: 10.14489/td.2022.05.pp.026-033. EDN EJGOGQ.
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