Aimagambetova Raushan

@ksm.kz

Head of Research and Training Department
Kazakhstan Institute of Standardization and Metrology Committee of Technical Regulation and Metrology Ministry of Trade and Integration of the Republic of Kazakhstan

Aimagambetova Raushan


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https://researchid.co/rauwan2012

EDUCATION

higher technical education

RESEARCH, TEACHING, or OTHER INTERESTS

Engineering, Control and Systems Engineering, Multidisciplinary, Control and Systems Engineering
17

Scopus Publications

Scopus Publications

  • Study of radiation sources of automatic control system of optical parameters of fiber-optic sensors
    Ali Mekhtiyev, Aigul Seraly, Raushan Aimagambetova, Aliya Alkina, Yelena Neshina, Ruslan Mekhtiyev
    Periodicals of Engineering and Natural Sciences, 2025
    The prime objective of this experimental study is to check the influence of radiation on the performance and stability of a fiber-optic sensor’s control system. It examines the key issues caused by radiation and proposes solutions to improve the accuracy of measurements. For this test, a model of radiation exposure was created using special gamma and beta rays to observe how they influenced signal flow and the sensors’ reaction. Special ways of analyzing spectra and constant observation systems were used to detect changes and decreases in the optical signals resulting from radiation. As the radiation dose increases, it begins to degrade the quality of the data, ultimately leading to a 15% weakening of the signals at 500 Gy. Nonetheless, the use of special protective materials and programs managed to cut radiation exposure by a staggering 70%. The study demonstrates that enhancing both the radiation-hardened components and dynamic controls in fiber-optic sensors improves their reliability in areas with high radiation exposure. Such discoveries offer significant benefits for nuclear facilities, aerospace, and medical imaging, as resistance to radiation is crucial in these fields. These solutions play a role in strengthening the performance of automatic control for fiber-optic sensors.
  • Prospects for the use of soyan cake in the production of rye and wheat bread
    Н. С. Машанова, Raushan Aimagambetova, Zhuldyz Satayeva, M. E. Smagulova, Ainur Ibzhanova, et al.
    Bio Web of Conferences, 2024
    In this paper, an analysis was made of the use and consumption of soybean meal. Studied organoleptic, physico-chemical, functional and technological indicators of soybean cake. The safety of the use of cake in the production of bakery products has been established. Due to its economic value, reduced price, and high content of nutrients such as protein, fiber, carbohydrates and antioxidants, the use of soybean meal in the production of rye-wheat bread has been explored by partially replacing wheat flour.
  • Experimental Studies of Laboratory Samples of Fiber-Optic Sensors within Reinforced Concrete Building Construction. Part 1: Overview
    R.Zh. Aimagambetova, A.D. Mekhtiyev, O.V. Stukach
    International Seminar on Electron Devices Design and Production SED 2024 Proceedings, 2024
    Technical monitoring of building structures is necessary to improve the efficiency and safety ones. Early diagnosis in real time and timely notification of the danger of destruction of a monolithic reinforced concrete building structure, as well as the finding of the exact location of cracks formation is a very urgent problem. Development of control tools for the timely identification of hidden defects in extended building structures, monolithic reinforced concrete foundations etc. requires experimental studies of fiber-optic sensors in the observation systems. In the first part of the study, an overview of experimental investigations related to building structures monitoring using fiber-optic sensors (FOS) was carried out. The second part contains a summary of our experimental studies on the control of the technical condition of building structures. The optimal parameters for the configuring system are proposed. It is shown that under mechanical stress on FOS, the spectrum of the light spot changes. This makes it possible to determine the exact numerical values of the deformation. The use of the G652 standard optical fiber as a distributed source for continuous monitoring of the technical condition of buildings and structures allows monitoring changes in the parameters of mechanical loads, stresses, and deformations. A distributed FOS can be both a sensing element and a communication channel. The use of fiber in the control system will allow achieving high energy efficiency, since the attenuation of the optical signal in the fiber is very small. The results convincingly show that with the means of quasidistributed sensors, it is possible to reliably identify the damaged area, and using the optical reflectometry method to determine the place of destruction with an accuracy of one meter.
  • Experimental Studies of Laboratory Samples of Fiber-Optic Sensors within Reinforced Concrete Building Construction. Part 2: The experiment
    R.Zh. Aimagambetova, A.D. Mekhtiyev, O.V. Stukach
    Dynamics of Systems Mechanisms and Machines Dynamics 2024 International Scientific and Technical Conference Proceedings, 2024
    Design of control tools for the timely identification of hidden defects in monolithic reinforced concrete foundations, beams, and other extended building structures requires experimental studies of fiber-optic sensors (FOS) in monitoring systems. In the first part, an overview of experimental studies related to the monitoring of building structures using FOS was carried out. This paper discusses our experiments on the observation of the technical condition of building structures. The optimal parameters of the monitoring system are proposed. It is shown that under mechanical stress on FOS, the spectrum of the light spot changes. This makes it possible to determine the exact numerical values of the deformation. The use of optical fiber of the G652 standard as a distributed source for continuous monitoring of the condition of buildings and structures allows monitoring changes in the parameters of mechanical loads, stresses, and deformations. The dependence of the destruction of the optical fiber material with the cyclic load factor is founded. The main factors in the development of fatigue cracks in optical fiber are the amplitude of stresses and deformations, the duration of loading cycles. The results convincingly show that by means of quasi-distributed sensors it is possible to reliably identify the damaged area, and using the optical reflectometry method to determine the place of destruction with an accuracy of one meter.
  • Physical and Mathematical Models of Quantum Dielectric Relaxation in Electrical and Optoelectric Elements Based on Hydrogen-Bonded Crystals
    Valeriy Kalytka, Ali Mekhtiyev, Yelena Neshina, Aliya Alkina, Raushan Aimagambetova, Gabit Mukhambetov, Aleksandr Bashirov, Dmitriy Afanasyev, Arkadiy Bilichenko, Dinara Zhumagulova, Zukhra Ismailova, Yelena Senina
    Crystals, 2023
    The quantum statistical properties of the proton subsystem in hydrogen-bonded crystals (HBC) are investigated. Based on the non-stationary Liouville operator equation (taking into account a number of assumptions established in the experiment), a quantum kinetic equation is constructed for the ensemble of non-interacting protons (an ideal proton gas) moving in the crystal potential image perturbed by the external electric field. The balanced density matrix for the unperturbed proton subsystem is constructed using the quantum canonical Gibbs distribution, and the non-balanced density matrix is calculated from the solutions of the nonlinear quantum kinetic equation by methods in linear approximation of perturbation theory for the blocking electrode model. Full quantum mechanical averaging of the polarization operator makes it possible to study the theoretical frequency-temperature spectra of the complex dielectric permittivity (CDP) calculated using quantum relaxation parameters that differ significantly from their semiclassical counterparts. A scheme is presented for an analytical study of the dielectric loss tangent in the region of quantum nonlinear relaxation in HBC. The results obtained in the given paper are of scientific interest in developing the theoretical foundations of proton conduction processes in energy-independent memory elements (with anomalously high residual polarization) based on thin films of ferroelectric materials in the ultralow temperature range (1–10 K). The theoretical results obtained have a direct application to the study of the tunneling mechanisms of spontaneous polarization in ferroelectric HBC with a rectangular hysteresis loop, in particular in crystals of potassium dideutrophosphate (KDP), widely used in nonlinear optics and laser technology. The quantum properties of proton relaxation in HBC can be applied in the future to the study of solid-state electrolytes with high proton conductivity for hydrogen energy, capacitor technology (superionics, varicodes), and elements of MIS and MSM structures in the development of resonant tunnel diodes for microelectronics and computer technology.
  • Fiber optics based system of monitoring load-bearing building structures
    Mekhtiyev, Ali, Narkevich, Mikhail, Neshina, Yelena, Kozhas, Aigul, Aimagambetova, Raushan, et al.
    Magazine of Civil Engineering, 2023
    Inspection of the technical condition of load-bearing structural elements of buildings and structures in the process of their construction and operation is an important issue at the present time. A fiber-optic monitoring system is proposed as a solution to the problem of early diagnosis of defects and damage to load-bearing building structures. A scheme has been developed for testing fiber-optic sensors, which make it possible to control the stress-strain state of monolithic reinforced concrete structures. For testing, a series of monolithic concrete beams of rectangular cross section has been made reinforced with fiber optics during their manufacturing. The values of mechanical stresses and deformations arising in beams under loading have been determined. Using the tested samples as an example, it has been established that the proposed fiber-optic monitoring system (FOMS) makes it possible to control stresses and deformations (and to predict the appearance and growth of cracks) in various building structures. The main element of the system is a hardware-software complex capable of estimating the parameters of a light wave at the output of the optical fiber. The distance from the installation site of the data processing unit to the measurement point can cover the area of 30 km. At this, fiber-optic sensors operate without additional power supply from a laser with the power of up to 30 mW. The proposed monitoring system has a low cost of one measurement point, it is easy to install, which is a good alternative to the electronic beacon-recorder device and the development of optical digital technologies in construction.
  • POWER SUPPLY VIA FIBER-OPTICAL CONDUCTOR FOR SENSORS OF MINE WORKING MONITORING SYSTEM
    Ali Mekhtiyev, Pavel Dunayev, Yelena Neshina, А. D. Аlkina, Raushan Aimagambetova, et al.
    Eastern European Journal of Enterprise Technologies, 2023
    The article describes a system of power transmission via fiber-optic cable, which allows the supply of power to sensors and other electronic devices of ultra-low power located in places of mining workings, for which the mandatory requirement is fire safety. The developed system will allow to replace the application of copper conductors. The result of this research is the developed laboratory bench that allows measuring the current and voltage parameters in the photodetector branch. The equivalent generator method has been used, as well as the known circuit laws with two dedicated nodes for an active two-terminal network. When analyzing the literature, the existing scientific achievements, and discoveries in the field of research, an own concept of research has been formed that is different from foreign analogs. During the experiment, the studies have been performed when the photodetector was in the short circuit, idle mode, and connected to a high-resistance load. Based on the results obtained, current-voltage characteristics (CVC) and histograms have been built using a radiation source (laser) with a power of 10 and 30 mW. The parameters and technical characteristics of the irradiated silicon crystal and the radiation source have been given. The obtained electrical power has been determined using the known laws of electrical engineering, including the Ohm law. To process the experimental data, there has been used quadratic interpolation of the function, the results of the root-mean-square approximation, and there has been carried out the regression analysis. Absolute and relative errors have been calculated. The Student coefficient has been determined with a confidence interval of 0.95. Based on the results of the study, the efficiency of the power transmission system has been determined
  • MONITORING REINFORCED CONCRETE BUILDING STRUCTURE TECHNICAL CONDITIONS BASED ON THE USE OF QUASI-DISTRIBUTED FIBER-OPTIC SENSORS
    Ali Mekhtiyev
    International Journal of Geomate, 2022
    Construction and safe operation of buildings and structures in complicated geological conditions, in the conditions of dense development, is a vital issue for large, densely populated cities. Systems of monitoring the technical condition of the supporting structures of buildings based on the use of fiber-optic sensors have been developed. Fiber-optic sensors operate on a new method of controlling the parameters of a light spot using a hardware-software complex. The proposed monitoring system is quasidistributed and can determine the damaged and most stress-strained sections of the supporting reinforced concrete structures of buildings at the stage of their occurrence and take preventive measures to protect them. The monitoring system can perform the function of measuring pressure on the building structure and establish the damage zone and signal in case of a sharp change in parameters during the structure destruction. Using this system, it is possible to monitor the technical condition of building structures of the underground and aboveground parts of buildings and to monitor their integrity in real-time. A four-channel hardwaresoftware complex has been developed that uses the physical principles of measuring pressure on a concrete beam, as well as changing the refractive index during micro bending of an optical fiber of the G.652 type, which can be expressed through changing the light spot incident on the surface of the photodetector. The dependence of additional losses in an optical fiber on the applied force at a light wavelength of 650 nm has been obtained.
  • Using optical fibers (Of) to control the stress-strain state of steel structures subject to fatigue failure
    Metalurgija, 2022
  • Use of computer simulation to establish parameters of steel structure strengthening elements
    Metalurgija, 2022
  • Hardware-software Complex for Monitoring Incidental Losses Occurring in Optical Communication Cables under Mechanical Effect
    А. D. Аlkina, A. V. Yurchenko, P Sh Madi, Ali Mekhtiyev, Yelena Neshina, et al.
    2022 IEEE International Multi Conference on Engineering Computer and Information Sciences Sibircon 2022, 2022
  • Research of mechanical stress at tension of quartz optical fiber (QOF)
    Metalurgija, 2021
  • The Peculiar Measure Identifying of the Temperature Leap in the Distributed Raman Sensors
    Ivan A. Ershov, Oleg V. Stukach, Raushan Aimagambetova
    15th International IEEE Scientific and Technical Conference Dynamics of Systems Mechanisms and Machines Dynamics 2021 Proceedings, 2021
  • DESIGN OF AN INFORMATION-MEASURING SYSTEM FOR MONITORING DEFORMATION AND DISPLACEMENT OF ROCK MASSIF LAYERS BASED ON FIBER-OPTIC SENSORS
    Vyacheslav Yugay, Ali Mekhtiyev, Yelena Neshina, B. B. Aubakirova, Raushan Aimagambetova, et al.
    Eastern European Journal of Enterprise Technologies, 2021
  • Model of the Yield Loss Factors Based on Survey Analysis for the Integrated Circuits Manufacturing
    Oleg V. Stukach, Raushan Aimagambetova
    2019 International Seminar on Electron Devices Design and Production SED 2019 Proceedings, 2019
  • Towards the problem of measurement traceability in the Internet of measurement concept
    Raushan Zh. Aimagmbetova, Ivan A. Ershov, Oleg V. Stukach
    11th International IEEE Scientific and Technical Conference Amp Amp Quot Dynamics of Systems Mechanisms and Machines Amp Amp Quot Dynamics 2017 Proceedings, 2017
  • Interrelation of metrology, testing and quality in semiconductor production
    R. Zh. Aymagambetova
    2017 International Siberian Conference on Control and Communications Sibcon 2017 Proceedings, 2017