rus
Metrology & Metrological Equipment
A. B. Lyukhter, V. I. Krivorotov, K. V. Skvortsov
Two-Level Method for Assessing The Operational Reliability of a Laser Impact Active-Protection Modular Cabin (APMC) DOI: 10.22184/1993-7296.FRos.2021.15.6.454.472
The results of a comprehensive assessment of the operational reliability of a laser impact active-protection modular cabin (APMC) are presented. A two-level computational and experimental technique has been developed and practically implemented, which includes, at the first level, the determination of the «actuation» time of the laser radiation emergency shutdown system (LRESS) under the conditions of APMC with a continuous fiber laser generator operating with a maximum power of 6 kW. At the second level, the stress and structural state of the metal of the panels was assessed, as well as the bearing capacity of the APMC elements after repeated laser impact. The reliability and advantages of APMC in terms of equipping with LRESS protection means, excluding the possibility of laser radiation leaving the cabin, are shown.
Two-Level Method for Assessing The Operational Reliability of a Laser Impact Active-Protection Modular Cabin (APMC) DOI: 10.22184/1993-7296.FRos.2021.15.6.454.472
The results of a comprehensive assessment of the operational reliability of a laser impact active-protection modular cabin (APMC) are presented. A two-level computational and experimental technique has been developed and practically implemented, which includes, at the first level, the determination of the «actuation» time of the laser radiation emergency shutdown system (LRESS) under the conditions of APMC with a continuous fiber laser generator operating with a maximum power of 6 kW. At the second level, the stress and structural state of the metal of the panels was assessed, as well as the bearing capacity of the APMC elements after repeated laser impact. The reliability and advantages of APMC in terms of equipping with LRESS protection means, excluding the possibility of laser radiation leaving the cabin, are shown.
Tags: laser technological equipment; active-protection modular cabins reflected and scattered radiation of laser impact; magnetometric
Lasers & Laser Systems
G. I. Dolgikh, S. G. Dolgikh, V. V. Ovcharenko, V. A. Chupin, V. A. Shvets, S. V. Yakovenko
Features of The Use of Laser Deformographs of Classical and Pendulum Types DOI: 10.22184/1993-7296.FRos.2021.15.6.474.483
The features of the application of laser strainmeters of the pendulum and classical types are considered on the example of recording hydroacoustic vibrations created on the shelf of the Sea of Japan by a low-frequency hydroacoustic emitter with a central frequency of 22 Hz. When analyzing the obtained experimental data, not only the ratios of the received amplitudes of seismic-acoustic vibrations by these laser strainmeters are established, but also the approximate propagation velocities of these disturbances in the upper layer of the Earth’s crust are determined.
Features of The Use of Laser Deformographs of Classical and Pendulum Types DOI: 10.22184/1993-7296.FRos.2021.15.6.474.483
The features of the application of laser strainmeters of the pendulum and classical types are considered on the example of recording hydroacoustic vibrations created on the shelf of the Sea of Japan by a low-frequency hydroacoustic emitter with a central frequency of 22 Hz. When analyzing the obtained experimental data, not only the ratios of the received amplitudes of seismic-acoustic vibrations by these laser strainmeters are established, but also the approximate propagation velocities of these disturbances in the upper layer of the Earth’s crust are determined.
Tags: classical-type laser strainmeter hydroacoustic signal low-frequency hydroacoustic emitter pendulum-type laser strainmeter seismic-acoustic signal гидроакустический сигнал лазерный деформограф классического типа лазерный деформограф маятникового типа низкочастотный гидроакустический излучатель сейсмоакустический сигнал.
Opto-electronic systems and complexes
I. V. Znamensky, E. O. Zot’ev, S. Yu. Yudin
Comparative Analysis of Threshold Sensitivity of IR-Systems in Different Spectral Range DOI: 10.22184/1993-7296.FRos.2021.15.6.484.500
The result of calculating the threshold illumination of an optoelectronic system (OES) in various infrared sub-ranges in the range of 0.9–5.3 µm is presented. A technique has been developed and the illumination of the entrance pupil of the OES from the signal of the monitoring object (OM) of a cylindrical shape illuminated by the Sun and due to the intrinsic radiation of the OM surface is calculated. A program for energy calculation has been developed and its interface has been presented.
Comparative Analysis of Threshold Sensitivity of IR-Systems in Different Spectral Range DOI: 10.22184/1993-7296.FRos.2021.15.6.484.500
The result of calculating the threshold illumination of an optoelectronic system (OES) in various infrared sub-ranges in the range of 0.9–5.3 µm is presented. A technique has been developed and the illumination of the entrance pupil of the OES from the signal of the monitoring object (OM) of a cylindrical shape illuminated by the Sun and due to the intrinsic radiation of the OM surface is calculated. A program for energy calculation has been developed and its interface has been presented.
Tags: accumulation time atmosphere ir range matrix photodetector optoelectronic system overall brightness coefficient photon signal-to-noise ratio threshold illumination коэффициент габаритной яркости матричные фпу обзор космического пространства характеристики оптико-электронных систем
A. V. Medvedev, A. V. Grinkevich, S. N. Knyazeva
Specific Features of Solar Blind UV-Range Devices DOI: 10.22184/1993-7296.FRos.2021.15.6.502.524
This article reviews a specific variety of optico-electronic devices operating in the spectral range from 0,25 to 0.3 µm, which is commonly referred to as Solar Blind Ultra Violet (SBUV) spectral range as the solar radiation of the said wavelengths does not virtually reach the earth surface. The devices of this category are operable even in the viewing conditions “against the sun”, which is not possible with any other system. Apart from special features of the SBUV devices, their designs for various areas of application are reviewed.
Specific Features of Solar Blind UV-Range Devices DOI: 10.22184/1993-7296.FRos.2021.15.6.502.524
This article reviews a specific variety of optico-electronic devices operating in the spectral range from 0,25 to 0.3 µm, which is commonly referred to as Solar Blind Ultra Violet (SBUV) spectral range as the solar radiation of the said wavelengths does not virtually reach the earth surface. The devices of this category are operable even in the viewing conditions “against the sun”, which is not possible with any other system. Apart from special features of the SBUV devices, their designs for various areas of application are reviewed.
Tags: flash sensor solar blind uv direction finder uv range uv targeting systems датчик вспышки солнечно-слепой уф-диапазон уф-пеленгатор уф-системы наведения
Optical Devices & Systems
P. S. Zavyalov, E. V. Vlasov, A. V. Soldatenko, M. A. Zavyalova, V. S. Bartosh
Development of Optical Schemes for Formation of a Comfortable Visual Simulation in The Field of Simulators Building DOI: 10.22184/1993-7296.FRos.2021.15.6.526.539
The article discusses the basic principles, advantages and disadvantages of imaging devices for visual simulation. The requirements for the quality of the generated image when working with an observer have been established. Two options for constructing projection optical systems are presented that provide a sufficiently wide field of view for a stationary observer.
Development of Optical Schemes for Formation of a Comfortable Visual Simulation in The Field of Simulators Building DOI: 10.22184/1993-7296.FRos.2021.15.6.526.539
The article discusses the basic principles, advantages and disadvantages of imaging devices for visual simulation. The requirements for the quality of the generated image when working with an observer have been established. Two options for constructing projection optical systems are presented that provide a sufficiently wide field of view for a stationary observer.