10.14489/td.2026.10.pp.047-052

2026, 10 October

DOI: 10.14489/td.2026.10.pp.047-052

Skleznev A. A., Razin A. F., Kutyurin V. Yu., Aniskovich V. A., Rykov A. N., Kutyurin Yu. G.
FOS CALIBRATION FOR STRAINS MEASURING OF COMPOSITE MATERIALS STRUCTURES UNDER TEMPERATURE CONDITIONS CHANGING
(pp. 47-52)

Abstract. A method for calibrating fiber-optic sensors (FOS) based on Bragg gratings used as strain gauges integrated into composite structures is proposed. The proposed calibration method can be used in aerospace and rocket technology to measure the strain of composite structural components over a wide operating temperature range. It is shown that calibration should be performed in two stages to isolate the strain component due to the thermo-optical sensitivity coefficient of the fiber. An example of calibration is presented using a dilatometer with an optical system for monitoring the shift of reference points during sample heating by clamping regions of the fiber on both sides of the Bragg grating.

Keywords: fiber Bragg grating, composite materials, deformation, calibration.

+ - About the Authors Click to collapse

A. A. Skleznev (JSC "Center for Advanced Research" (JSC "TSNIISM"), Khotkovo, Russia)
A. F. Razin (Central Scientific Research Institute of Special Mechanical Engineering JSC (TSNIISM JSC), Khotkovo, Russia)
V. Yu. Kutyurin (JSC "ARMOKOM", Khotkovo, Russia)
V. A. Aniskovich, A. N. Rykov, Yu. G. Kutyurin (Central Scientific Research Institute of Special Mechanical Engineering JSC (TSNIISM JSC), Khotkovo, Russia)

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DOI: 10.14489/td.2026.10.pp.047-052

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