18 research outputs found

    Simulation of a metal vapor active media power supply

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    The results of the development of the high-frequency metal vapor active media power supply are presented. The results of OrCAD simulation of the processes that occur in the power supply are described. The results of the simulation and experiment for the resistive load operation mode were compare

    Study of amplifying characteristics of copper bromide active media operating at the increased superradiance pulse duration mode

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    Amplifying characteristics of the copper bromide vapor active media with the increased inversion duration are studied using the detailed kinetic modeling. The analysis of the gain radial profile and its time evolution at various points of the GDT profile is presented. The results show the possibility of application such active media to the tasks of the remote object visualization

    Study of high-frequency brightness amplifiers radial profile

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    The paper presents experimental results on obtaining high pulse repetition frequencies of radiation/gain in copper bromide vapor active media. Also the results of experimental and theoretical studies of radial profiles of radiation and amplification of such media at raised pump pulse frequencies are give

    Operation of a capacitive pumped cubr laser in a reduced energy deposition mode

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    The results of the operation of a capacitive pumped CuBr laser in a reduced energy deposition mode are presented. A high radiation-pulse repetition rate of 100 kHz in the active medium of copper bromide vapors was obtained. The results of OrCAD simulation of the high-frequency metal vapor active media pumping source with capacitive pumping are presented

    Development of physical and psychological states graphs of people and their software implementation in the tasks of evacuation modelling

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    The purpose of the presented in the article results is to increase the realism of the people evacuation modeling in case of emergency situation. Models that exist today do not describe in detail physical and psychological states of the characters during the simulation. This article presents the results of the development of people physical and psychological states graphs in the conditions of evacuation. All graphs are presented as extended final state machines. On the basis of the developed finite state machines the description of state transitions was carried out and algorithms were built This work was carried out as part of the development of a comprehensive 3D model of the people evacuation processes of in emergency situations in particular fires. A software implementation in the Unreal Engine program of these states was performed. Examples of the behavior of characters in various psychological and physical states are also presente

    Modification and simulation of the power supply of a metal vapor laser

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    The modification of a power supply circuit used for pumping metal vapor lasers is analyzed. The results of OrCAD simulation of the processes that occur in the power supply are presented. The effect of the capacitance ratio on the charging process of a storage capacitor is described. The mode which provides more time for the recovery of the thyratron is discussed. The results of the development of the small-size high pulse repetition frequency laser with up to 3 W average output power are presented

    Development of a device for registration and processing of EMG signals for a prototype of a bionic prosthetic hand

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    This paper presents the stages of development of the device registration and processing of the EMG signal, the structural and schematic diagram of the device and the PCB of the device. The experimental results of testing the device in the form of oscillograms of EMG signals and control pulse signals that control the operation of the prototype bionic prosthetic hand are also presented

    The research of the quality of ECG recording by capacitive electrodes in violation of the skin-electrode contact

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    This paper presents actual development in the field of personal telemedicine. For personal cardiographs most suitable dry electrodes that do not require a conductive gel. This article describes experiments with capacitive electrodes from Plessey Semiconductors. On the basis of the obtained experimental data, it is planned to create own capacitive electrodes with the possibility of detuning from the skin-electrode contac

    Kinetic modeling of amplifying characteristics of copper vapor active media for a wide range of input radiation power

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    This paper presents the theoretical study of the optical gain of copper vapor active media for a wide range of input signal power. The modified kinetic model is used to identify the effect of the optical saturation on the amplified spontaneous emission and the spatio-temporal evolution of amplifying characteristics. Also, the dependence of these characteristics on the copper concentration is studied. The results obtained are discussed in the context of using copper vapor active media in laser monitors
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