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2021 International Conference "Nonlinearity, Information and Robotics", NIR 2021

作者： Filaretov, Vladimir Zuev, Alexander Zhirabok, Alexey Protsenko, Alexander Institute of Automation and Control Processes Vladivostok Russia Institute of Marine Technology Problems Vladivostok Russia

ISBN: (纸本)9781665424066

This paper considers the problem of increasing the reliability of operation of underwater robots through the use of accommodation systems that compensate for the consequences of faults that appear in the thrusters. A new method for constructing accommodation systems, which contains three stages, is proposed. At the first, the detection of emerging faults is carried out using the bank of diagnostic observers. Each observer is synthesized according to a special procedure in such a way that its residual is sensitive to some group of faults and insensitive to others. This makes it possible to isolate each specific fault. At the second stage, the values of sensor errors and deviations of the parameters of the thruster from their nominal values are estimated by additional sliding mode observers. At the third stage, additional control signals for robot's thrusters are formed. They ensure the stabilization of dynamic properties of thrusters under the faults. The results of simulation are presented, which have confirmed the operability and high efficiency of the synthesized accommodation system. © 2021 IEEE.

关键词： Robots

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Laser-Driven Steering of Liquid Flows in Sessile Droplets

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Bulletin of the Russian Academy of Sciences: Physics 2024年第Suppl 3期88卷 S313-S321页

作者： Dyshlyuk, A.V. Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok690041 Russia Vladivostok State University Vladivostok690041 Russia

We studied excitation of fluid flows in sessile liquid droplets by short laser pulses. It is shown that the observed flows are Marangoni thermal flows caused by the temperature gradient of the surface tension coefficient and are excited due to the thermal effect of laser pulses on the liquid in the droplet. The cases of pinned and unpinned contact line, as well as different contact angles and different localization of the irradiating laser pulse within the droplet are investigated. The possibilities of both excitation of internal vortex flows in a stationary droplet and movement of the entire droplet on the substrate are demonstrated. The proposed technique can find application to speed up mixing of multicomponent droplets, as an additional mechanism for tailoring liquid flows in evaporating droplets to control the distribution of impurities deposited on the substrate after droplet drying, as well as for laser-assisted control of droplet motion on superhydrophobic substrates in microfluidics and lab-on-chip systems. © Pleiades Publishing, Ltd. 2024.

关键词： Microfluidics

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On the optical field confinement at the anapole mode in nanohole silicon metasurfaces

arXiv

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arXiv 2025年

作者： Panov, A.V. Institute of Automation and Control Processes Far Eastern Branch of Russian Academy of Sciences 5 Radio St. Vladivostok690041 Russia

Recently, researchers demonstrated numerous types of the metasurfaces with non-radiating states including the anapole ones. These metasurfaces have promising properties for various applications in optics which are mainly connected with the optical field confinement. But by itself, the existence of the anapole state does not make one available to exploit this feature. For example, Ospanova et al. [Laser & Photonics Rev., 2018, vol. 12, p. 1800005] presented a grouped nanohole array in silicon slab possessing anapole mode in visible range. In this work, it is proved that despite of the existence of the anapole mode in the proposed nanostructure the valuable electric field confinement is not reached. Thus most expected uses of the anapole state cannot be gained through this nanostructure. As demonstrated here, the aforementioned nanostructure may be replaced by the square nanohole array having the anapole state with different meta-atom and much larger electric field confinement. Copyright © 2025, The Authors. All rights reserved.

关键词： Electric fields

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Direct Femtosecond Laser Printing of Plasmonic Colors in Reflection at 25,000 DPI

Direct Femtosecond Laser Printing of Plasmonic Colors in Ref...

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2022 International Conference Laser Optics, ICLO 2022

作者： Lapidas, V.S. Zhizhchenko, A.Yu. Kuchmizhak, A.A. Far Eastern Federal University Vladivostok690061 Russia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Science Vladivostok690041 Russia

ISBN: (数字)9781665466646

ISBN: (纸本)9781665466646

Femtosecond-laser nanotexturing of the top metal films crowing a metal-insulator-metal (MIM) sandwich designed to support Fabry-Perot mode in the visible spectral range was carried out to realize multi-color printing of micro-scale structural color images at 25,000 dpi resolution. Applied pulse energy controls the resulting geometry of the surface modifications that vary from 3D nanojets to micro-holes affecting local surface reflectivity observed with an ordinary optical microscope in reflection mode. © 2022 IEEE.

关键词： Color

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Cloud platform for smart product-service systems

Cloud platform for smart product-service systems

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International Scientific Conference Artificial Intelligence and Digital Technologies in Technical Systems 2020, AIDTTS 2020

作者： Gribova, V.V. Velichko, A.S. Institute for Automation and Control Processes 5 Radio St. Vladivostok690041 Russia

The paper deals with the problem of decision-making support for digital production planning. The analysis of the stages of organization and production planning currently is poorly represented in existing software solutions. Main stages of digital production planning are identified such as optimization of manufacturing placement;optimization of suppliers selection of resources and its delivery to the place of manufacturing. Taking into account the conditions of the modern stage of development of technologies for the digital production, we can identify the key requirements for the functionality and use of the software platform. The formalization (ontology) based on the approach of production and operational management and the architecture of a digital cloud platform and its functional modules has been developed for the digital production planning process. It is a decentralized platform as a public network consisting of independent software modules (cloud services), connected into a tool with expandable number of modules. The software tool consists of production-planning unit and production-management support unit. Currently, a number of modules of the system have been developed and experimentally tested;now we are developing the full-featured tool. © Published under licence by IOP Publishing Ltd.

关键词： Manufacture

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Detection of Weak Seismic Waves in Land–Sea Interface by Fiber-Optic Interferometric Accelerometers

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Bulletin of the Russian Academy of Sciences: Physics 2024年第Suppl 3期88卷 S348-S351页

作者： Kamenev, O.T. Kamenev, A.O. Petrov, Yu. S. Podlesnykh, A.A. Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok690041 Russia Far Eastern Federal University Vladivostok690922 Russia

Abstract: The possibility of detection of weak seismic waves in land–sea interface by horizontal fiber-optic interferometric accelerometer is experimentally demonstrated. The use of a passive phase demodulation metho... 详细信息

关键词： Accelerometers

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Transparent Microheater Enabled by Laser Perforation of the Thin CaSi2 Film

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Bulletin of the Russian Academy of Sciences: Physics 2024年第Suppl 3期88卷 S418-S422页

作者： Pavlov, D.V. Il’yaschenko, V.M. Bozhok, A.V. Banniy, D.E. Kuchmizhak, A.A. Shevlyagin, A.V. Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok690041 Russia Far Eastern Federal University Vladivostok690950 Russia

We report highly transparent in the wide band optical range of (0.4–7) µm mesh electrodes fabricated on thin semimetal films of semimetal calcium disilicide (CaSi2) by utilizing femtosecond laser ablation technique with flat top beam shaped geometry. Compared with continuous films, mesh electrodes demonstrate an increase in the figure of merit as transparent conducting materials from 0.3 up to 0.9 Ω–1. Of importance, CaSi2 retains low sheet resistance not exceeding 20 Ω/sq after laser processing. Obtained material parameters allowed testing CaSi2 mesh electrodes under actual conditions as transparent heater. The surface temperature as high as 150°C under low applied DC voltage of 8 V has been approved by infrared camera. CaSi2 heater possess hysteresis free behavior with response as fast as 40 s and excellent stability under the cyclic operation. Thus, laser perforated CaSi2 thin films could be considered as a material of choice for the infrared optoelectronic applications, smart windows and miniature heaters for microscopic observations of biological samples. © Pleiades Publishing, Ltd. 2024.

关键词： Laser ablation

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Emission Spectra of Water Aerosols Induced by Filamentation of Femtosecond Laser Pulses in Air

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Bulletin of the Russian Academy of Sciences: Physics 2024年第Suppl 3期88卷 S330-S334页

作者： Ilyin, A.A. Mayor, A. Yu. Tolstonogova, Yu. S. Lisitsa, V.V. Borovsky, A.V. Golik, S.S. Institute Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok690041 Russia Far Eastern Federal University Vladivostok690922 Russia

Abstract: The characteristics of emission spectra induced by femtosecond laser filaments in air and water aerosol were studied. Spectra were accumulated 100 ns after 0 ns time delay relative to laser pulse. Second positive (2+) and first negative (1–) nitrogen systems were observed. Growth of continuum intensity and noise was observed at transition from filamentation in air to that of in water aerosol. Intensity of 1– system line decreased more strongly in comparison with 2+ system lines for filamentation in water aerosol what explained by quenching collisions of emitters by water molecules. Translational and vibrational temperatures were measured, 329 and 3470 K (filamentation in air), 356 and 3546 K (filamentation in water aerosol). © Pleiades Publishing, Ltd. 2024.

关键词： Femtosecond lasers

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Multifunctional Superhydrophobic Platform for control of Water Microdroplets by Non-Uniform Electrostatic Field 9

Multifunctional Superhydrophobic Platform for Control of Wat...

引用

Nanophotonics and Micro/Nano Optics IX 2023

作者： Pavliuk, Georgii P. Zhizhchenko, Alexey Y. Vitrik, Oleg B. Far Eastern Federal University 10 Ajax Bay Russky Island Vladivostok690922 Russia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Science 5 Radio St. Vladivostok690041 Russia

ISBN: (纸本)9781510667952

At the moment, manipulation of liquid microdroplets is required in various microfluidic and lab-on-a-chip devices, as well as advanced sensors. We report a new method for microdroplets manipulation, based on the use non-uniform electrostatic fields. Our platform uses an electrode array embedded in a dielectric planar superhydrophobic substrate produced by direct laser writing. When a voltage is applied to a certain sequence of electrodes, a non-uniform electrostatic field is produced, which acts to attract a droplet on the substrate to the electrodes. This achieves a stepwise movement of the droplet. We realized non-contact, selective and high-speed movement of the individual droplets along specified trajectories and their selective coalescence. In our opinion, this approach has a huge potential for chemical technology applications especially in optical sensors. © 2023 SPIE. All rights reserved.

关键词： Femtosecond lasers

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The AUV control System for Trajectory Movement Taking Into Account the Limitations of its Thruster System

The AUV Control System for Trajectory Movement Taking Into A...

引用

Ocean Studies (ICOS), International Conference on

作者： Dmitry Yukhimets Control processes Robotic lab. Institute of Automation Institute of Marine Technology Problem Vladivostok Russia Far Eastern Federal University Vladivostok Russia

ISBN: (数字)9798331532307

ISBN: (纸本)9798331532314

The paper proposes a method for synthesizing a control system for AUV movement along complex trajectories, considering the uncertainty of the AUV parameters, as well as the limitations of its thruster complex. To solve this problem, a spatial position control system is synthesized, which considers the interactions between the degrees of freedom of the AUV and the uncertainty of its parameters. At the same time, to ensure the accurate movement of the AUV, an additional correction contour of the program speed of movement is synthesized, to consider the possible entry of the AUV thrusters into saturation and its deviation from the trajectory. The feature of the proposed method of correction of the AUV program speed is to consider the peculiarities of the dynamics of the AUV and the kinematics of its thruster system, which allows you to quickly adjust the program speed of movement. The simulation results showed that the proposed method allows for the accurate movement of the AUV along smooth spatial trajectories that are formed during the mission.

关键词： Uncertainty Accuracy Attitude control Simulation Oceans Dynamics Position control Kinematics control systems Trajectory

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