OPTICAL AND OPTO-ELECTRONIC INSTRUMENTS AND SYSTEMS
METHOD FOR EVALUATION OF THE MAGNITUDE OF SOLAR RADIATION REFLECTED BY INTERNATIONAL SPACE STATION
Vasily M. Tymkul , Lyubov V. Tymkul, Yury A. Fesko, Kirill V. Kudryashov, Svatlana V. Lugovskyh
5
A technique of calculating reflected solar radiation magnitude of the International Space Station (ISS) is presented. The method is based on the use of the brightness factor as an optical characteristic of the light reflected by the station and description of the reflecting surface as a superposition of cylindrical, conical, spherical and flat elements. An algorithm and software for calculation of the ISS magnitude as a function of the station and observer orientation angles are developed. The results of calculation are compared with data obtained from the Internet and special measurements.
WAY TO IMPROVE RESOLUTION OF SPECTROPHOTOMETER WITH CONCAVE DIFFRACTION SCREEN
Maria V. Smirnova, Andrey Voronin, Burbaev Amir M.
10
Resolution of spectrophotometer Cedar-M designed for analysis of wood species is considered. The possibility of improvement of the instrument resolution by variation of the diffraction lattice the operation area is demonstrated. A numerical method to calculate the intensity distribution over the circle of confusion and resolution of the spectrum analyzer with concave diffraction screen is presented.
METHOD TO MEASURE POLARIZATION SENSITIVITY OF OPTICAL RADIATION DETECTOR
Alekseev Sergey A., Matveev Nikolay V
14
A new method is proposed for measurement of sensitivity of optical detector to polarization of incident radiation. The method is based on harmonic analysis of output signal of the detector in “polarizer – discreet analyzer – detector” setup. The method accuracy is estimated with the use of digital modeling of the measurement errors. Results of experimental study of polarization sensitivity of silicon photodiodes and optical pyrometers are
presented.
ANALYSIS OF THE EFFECT OF CROSS-INTERFERENCE ON SHEARING INTERFEROMETER ACCURACY
Oleg P. Bolshakov, Igor R. Kotov, Majorov Evgeniy E., Prokopenko Victor T.
18
Operation of a shearing interferometer as an element of interference fringes adjustment for processing of double-exposure holograms of diffuse reflecting object is considered. Theoretical analysis of the impact of crossinterference on error in fringe phase measurement is presented.
DESIGN OF CHANNEL WAVEGUIDES GEOMETRY FOR ELECTRO-OPTICAL MODULATORS
Tatiana V. Yakovleva, Арефьева Н. Н.
21
A method for design of geometrical parameters of channel waveguides is presented. The proposed approach is based on the effective refractive index method.
MODELING OF INTEGRATING SPHERE WITH A BAFFLE
Nikolay P. Belov, Grisimov Vladimir N, Sherstobitova Aleksandra S, Yaskov Andrey D.
25
Numerical modeling of integrating sphere is performed for the case of additional baffle introduced to prevent incidence of direct radiation from emitter positioned near the sphere center upon the measured sample (diffuse reflector). Results of calculation of irradiance distribution inside the sphere under examination are presented.
MODELING OF MULTI-ELEMENT RADIATION SOURCE
Gorbunova Elena V., Korotaev Valery Viktorovich, Peretyagin Vladimir Sergeevich, Chertov Alexander N.
31
Digital model of multi-element color radiation source is developed on the base of representation of spatial distribution of the irradiation by a linear combination of Lambert functions. The derived equations may be used in design of sources on the base of LED structures.
STEREOSCOPIC SYSTEM FOR RAILWAY TRACK POSITION CONTROL
Konstantin Arakantsev, Alexey A. Gorbachev , Maria Serikova
34
An optical-electronic stereoscopic system is designed for railway track position control. Results of the system tests are presented.
DETECTION OF HEATED SMALL-SIZED OBJECT IN IR-SPECTRAL RANGE
Vladimir A. Golovkov, Vladislav N. Emelyanov, Sergey V. Solk
40
The problem of shell detection with the use of large-dimension IR optical systems and uncooled bolometric type TV matrix is considered.
INFORMATION TECHNOLOGIES AND SYSTEMS
OBJECT-ORIENTED TECHNOLOGY FOR CREATION OF VIRTUAL WORKING PLACES USING CLOUD COMPUTING ENVIRONMENT CLAVIRE
Alexei Doukhanov, Ekaterina V. Bolgova , Lev R. Gervich, Vasily G. Kolpakov, Evgeny N. Kravchenko, Ilia I. Kurochkin, Evgeny D. Maslennikov, Igor V. Oferkin, Anton O. Rubtsov, Sergey A. Smirnov, Oleg B. Shteinberg, Mikhail V. Yurushkin
45
Technology of automated design of virtual working places within the eScience paradigm framework is considered. An automated tool on the base of cloud computing environment CLAVIRE is developed. The tool potentials in development of cloud services for various applications are demonstrated.
APPLICATION OF SUPERCOMPUTERS TO MATHEMATICAL MODELING OF FILTRATION PROCESSES IN PERCOLATION LATTICE
Mikhail N. Voronyuk
52
Numerical simulation of dynamic percolation model (DPM) for oil field flooding is realized in supercomputers with GPU. An algorithm for workload balance is proposed. Modeling is carried out for a lattice consisting of 109 points.
LANGUAGE FOR DESCRIBING INFORMATION PROCESSING ALGORITHMS IN ENGINEERING SYSTEMS
Alexander A. Lyamkin, Nikolay P. Mikulenko, Tatyana F. Trevgoda
58
An object-feature language is proposed for describing the structure of complicated engineering systems, spatial arrangement of such systems, characteristics of systems and their components, information links as well as models of operation and information processing algorithms.
SEGMENTATION OF TEXTURED IMAGES USING FRACTAL METHODS
Valery T. Fissenko, Tatyana Yu. Fissenko
63
Fractal methods of segmentation of color texture images for automated texture processing systems are developed and studied. The texture color characteristics are used an additional indicators to improve the segmentation effectiveness. Peculiarities of texture synthesis on the base of fractal features are considered.
HEAT REGIMES OF INSTRUMENTS AND SYSTEMS
SETUP FOR DETERMINATION OF DYNAMIC CHARACTERISTICS OF HEAT FLUX SENSORS
Pilipenko Nikolay V., Польщиков Г. В., Sivakov Ivan A.
71
An experimental setup providing nonstationary heat flux for measurement of dynamic characteristics of flux sensors is developed. Results of experiments demonstrate the possibility of using battery heat flux sensor (Gerashchenko sensor) for nonstationary heat measurements.
MAINTAINING THERMAL STABILITY OF THE EARTH REMOTE-SENSING SPACE-BASED TELESCOPE BY THE LENS HOOD PARAMETERS OPTIMIZATION
Yulia Bayova, Khankov S.I.
76
The problem of thermal stability of space-based telescope for remote sensing of the Earth is discussed. The concept of background temperature of the telescope pupil is introduced to characterize deviation of the instrument thermal regime from the initial value realized in the stand-by mode with closed pupil cap. A formula is derived to describe dependence of desired operating temperature of the lens hood on present background temperature at the entrance pupil of the telescope, and on the ratio of the lens hood length to the pupil diameter.
PREDICTION AND CORRECTION OF FIBER-OPTIC GYROSCOPE THERMAL DRIFT
Eugeny I. Vahrameev, Konstantin S. Galyagin, Alexander S. Ivonin, Mikhail A. Oshivalov
79
A method for algorithmic prediction of fiber-optic gyroscope drift under external thermal variations is developed. Justification of the proposed method is carried out, results of the algorithm application for correction of cyclic thermal tests of the device are presented.
INSTRUMENT-MAKING TECHNOLOGY
METHODS OF FORMATION OF AERODINAMIC PROFILE OF GAS BEARING
Svetlana Yakovleva, Shcherbak Alexander G. , Belyaev Sergey N.
85
Features of formation of aerodynamic profile of gas bearing with the use of laser processing technology and ion etching are studied. A technology of formation of aerodynamic profile of variable depth at half-spherical part is proposed.
THERMAL ANNEALING OF BRAGG GRATING ON MANUFACTURING OF FIBER-OPTIC PHASE SENSOR
Meshkovsky Igor K., Varzhel Sergey V., Belikin Mikhail N, Kulikov Andrey Vladimirovich, Brunov Vyacheslav S
91
A method is proposed for fabrication of fiber-optic phase sensor with the use of thermal annealing of fiber Bragg grating. Optimal conditions of the annealing for Bragg gratings with the required spectral properties are determined.
METHOD OF LASER ULTRASONIC QUALITY CONTROL OF SOLDERED JOINT
Kinzhagulov Igor Yu, Vladimir A. Bychenok
94
Basic principles of a laser ultrasonic technique for quality control of soldered joints of thin-walled elements of space-rocket equipment are formulated. Results of approbation of the developed technique with real samples of liquid rocket engines chambers are presented.
BRIEF NOTES
ANALYSIS OF MEANS FOR UNAUTHORIZED OBJECT DETECTION
Alexey A. Martsukov, Andrey Voronin, Burbaev Amir M.
99
Analysis of existing customs examination means used at transportation facilities checking points are analyzed. A design of improved rotary unit for customs examination system is proposed.
