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The results of the energy submodel development for the optical-electronic device of a two spectral ratios are given in article. The adaptation of the generalized technique of an energy calculation was executed. The basic data for the energy submodel building were selected. The algorithm of the computer program which allow to calculate the spectral ratios in case of a different values of the diameter...
The article describes prospects for the development of multicriterion electro-optical system for alarm and pre-emergency situations control in a coal mine. The problems of scientific research, the implementation of which will improve fire safety in coal mines are formulated.
Modeling of flame radiation at burning of methane-air mixtures at an initial stage of development is executed. The basic analytical dependences for modeling are defined at an assumption, that burning is isothermal on volume and has the sphere form. Calculation of spectral radiant exitance from a surface of fireball is executed. Irradiance on an elementary platform depending on distance to fireball...
Article describes movement control algorithm of the fire robot based on a quadcopter along predetermined trajectory in the secure premise. Known approaches to determining of the fire robot location are analyzed. The approach to determining of the fire robot location is chosen taking into account requirements to the robot. The mathematical apparatus for determining of quadcopter coordinates and control...
This article was written as part of research and development aimed at creating an active noise reduction system for rooms. The purpose of this article is to choose the method of construction and the hard core of the active noise reduction system for rooms. This article considers the problem of noisy environments and examines methods that are used to prevent and eliminate noise. The focus is on the...
The article is devoted to the development of the software for the calculation and design of the optical-electronic devices for fires detection. The appropriateness of this software development is shown. The result of the work is the structure of program complex.
The article describes a study to determine the optimal number of channels and selection of wavelengths for high-speed OED. Structural diagram of the optical-electronic device (OED) is offered.
The article describes features of determine optimum spectral ranges of flame radiation control when using a compensation method of optical noises suppression. The criterion of optimality by determination of optimum spectral ranges of a flame radiation control taking into account technical realization of a compensation method of optical noises suppression is formulated. Photodetectors are chosen and...
The approach to determining of control points quantity and their arrangement on protected object for high-speed multipoint electro-optical system of fire detection and determine its spatial coordinates (EOS) is described. Optimality criteria of application EOS for maintenance of fire safety in coal mines taking into account methods of flame coordinates determining are formulated. Variants of control...
The article is devoted to laboratory researches of measuring of the irregular flow of milk by the contactless optical sensor of consumption. The information about the laboratory plant designed for determining of dependency power radiation from the grade of filling of the milk pipeline.
Article describes basic decisions on construction of the fire robot based on a quadcopter. The fire robot carries out patrol of a premise for detection of a fire and its liquidation. The basic technical requirements are formulated for the fire robot. The block diagram and constructive blocks for robot realization are offered. Hardware of the fire robot movement control system and method of video signal...
The article describes features of use of a compensation method of optical noises suppression for the explosion detection electro-optical systems. Results of experimental investigation of compensation method efficiency are given.
Computer simulation of optical radiation attenuation in dispersed system «coal dust-air» is performed. Basic analytical relationships which describe the radiation attenuation in the gas-dispersed system are determined. Checking of the computer model adequacy is carried out. Research of optical radiation attenuation on the basis of computer simulation is carried out. Computer simulation is executed...
This paper is devoted to the development of the optical-electronic system (OES) for determination of explosion initial stage location in gas-disperse systems. Laboratory researches are carried out and characteristics of OES are determined. The operability of the device is proved.
The three-channel optical-electronic device of two spectral relations is described in article. The theoretical construction principles of the device are formulated. The technical solutions for device implementation were worked out by the results of the carried out computer simulation. Carrying out tests of the developed device became the end of work. The result was the testing of the developed device.
Article describes a method for determining the difference of adulterated and natural honey by spectral analysis. Features of the method are formulated. The technique of carrying out research, design of laboratory setup and the block diagram of a household appliance were developed. Spectral characteristics transmittance transmittances of the honey were received a result of an experimental study. Product...
The article describes modeling task statement of optical radiation flux of fuel-air (hydrocarbonic) mixtures explosion at an initial stage of development on an example of coal mines atmosphere. Parameters of coal mines atmosphere are considered. The process of ignition and combustion of methane-air mixtures in coal mines atmosphere is analyzed. The approach to the decision of applied modeling problem...
The article describes the results of experiments that aim to study the possibility of using the spectral pyrometry method for fire detection in dust-gas-air environments.
Experimental research of optical radiation attenuation in dispersed system «coal dust-air» is executed. The method of coal dust preparation with set dispersity and method of research carrying out are developed. The block diagram of laboratory setup is offered. Experimental dependences of absorbance in dispersed system «coal dust-air» from wavelength at various concentration of coal dust and experimental...
New compact thulium fiber laser module is presented. Module operates in millisecond-pulse mode with peak power up to 500W, average power up to 50W, and pulse energy up to 5J. The module is air-cooled and can be easily integrated in laser system.
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