DOI: 10.17586/1023-5086-2024-91-04-50-59
УДК: 681.7.068
Development and study of a method for measuring the speed and weight of moving objects using fiber Bragg gratings
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Publication in Journal of Optical Technology
Козлова А.И., Моор Я.Д., Варжель С.В., Комисаров В.А., Калязина Д.В., Савин В.В. Разработка и исследование метода измерения скорости и веса движущихся объектов с применением волоконных решёток Брэгга // Оптический журнал. 2024. Т. 91. № 4. С. 50–59. http://doi.org/10.17586/1023-5086-2024-91-04-50-59
Kozlova A.I., Moor Ia.D., Varzhel S.V., Komisarov V.A., Kaliazina D.V., Savin V.V. Development and study of a method for measuring the speed and weight of moving objects using fiber Bragg gratings [in Russian] // Opticheskii Zhurnal. 2024. V. 91. № 4. P. 50–59. http://doi.org/10.17586/1023-5086-2024-91-04-50-59
Aleksandra Kozlova, Ianina Moor, Sergey Varzhel, Vladislav Komisarov, Daria Kaliazina, and Vladislav Savin, "Development and investigation of a method for measuring the speed and weight of moving objects using fiber Bragg gratings," Journal of Optical Technology. 91(4), 242-246 (2024). https://doi.org/10.1364/JOT.91.000242
Subject of study. In this paper, a method for dynamic weighting of moving objects by optical power registration using fiber Bragg gratings is investigated. The aim of study is the development and approbation of the method for measuring moving objects parameters in laboratory conditions. Method. The developed method is based on registration of the changing of the optical power reflected from the sensitive element, which consists of two fiber Bragg gratings and a chirped fiber Bragg grating. When a load is applied to the sensitive element, the reflection spectrum of the fiber Bragg grating goes to the sharply increasing area of the spectral response of the chirped fiber Bragg grating, and the value of the optical power coming to the interrogator becomes equal to the intensity of radiation of the cross section of the two spectral responses of diffraction structures. A two-channel power meter is used as a radiation receiver. Based on the received data, it is possible to judge of the mentioned parameters of the moving object. Main Results. In this research, the new method for measuring the weight in motion and velocity of moving objects using the fiber Bragg grating and chirped fiber Bragg grating is proposed. Experimental studies on dynamic and static weighting have been conducted. Based on the experimental data the dependences of the signal amplitude on time at different values of the weight of the load, as well as the calculation of the velocity of the object under study are constructed and presented. Practical significance. The scientific and technical solution proposed in this paper is of interest in further development and operation of automatic weight control systems. With the help of the proposed method, it is possible to optimize the process of controlling the weight and speed of a moving objects to ensure road safety.
weight-in-motion system, velocity measurement, fiber Bragg grating, chirped fiber Bragg grating, temperature compensation, fiber optic system
Acknowledgements:OCIS codes: 060.0060, 060.2310, 060.3735
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