Hidden defects of the wood can significantly affect for its physical properties and the customs value. For the identification of the hidden defects of the wood currently uses any organoleptic and ultrasonic techniques, which are not always effective for detecting of early forms of fungal damage of the wood. The authors proposed a new method of detecting hidden defects of the wood through UV radiation. To implement the method proposed to use a spectral luminescent magnifier "Regula 4177" with the device PPI "Kedr-M". The study of 128 wood samples showed a rather high efficiency of the proposed method. Were identified features of the luminescence of several types of fungal infections in ultraviolet radiation. The proposed technique can be used to identify hidden defects in the wood at the industry and at the customs control.

Keywords: Hidden defects of wood; ultraviolet radiation, devices, methods of control, identification, customs control

This article describes the current development of multi-sensor systems "electronic nose". The basis of portable multi-sensor systems "electronic nose" is a gas sensing unit, composed of solid-state gas sensors. The types of sensors. Set out the main research directions of the authors.

Keywords: quantitative analysis, chemical sensor, the hardware-software complex, solid-state gas sensor, gas sensing unit, electronic nose, hall-sensor, optical chemical sensor, multi-touch system

The article contains the results of vibro-acoustic signal processing using Hilbert-Huang transform, obtained during the test of the internal combustion engine. The providence of experiments and methods of vibro-acoustic signal processing is described.

Keywords: Hilbert-Huang transform, Hilbert spectrum, empirical mode decomposition, the decomposition of the ensemble, the Fourier spectrum, wavelet transform, diagnostics, non-destructive testing, the internal combustion engine, vibro-acoustic signal.

Based on stm32discovery kit was designed device for vibro-acoustic control. For receive of vibro-acoustic signal used piezoelectric accelerometer, which connected to ADC of microcontroller stm32f4vgt6. For Processing data use personal computer with software, which was developed in visual programming language LabVIEW Data from microcontroller to personal computer transmitter with use USB to UART. Culling depend from results of comparison, reference spectrum and current spectrum by values of the correlation coefficient

Keywords: STM32F4 Discovery, ADC, VISA Serial, LabVIEW, adapter USB to UART, vibro-acoustic control, spectrum, reference, signal processing, correlation coefficient

Paper deals with the analysis and synthesis of geographically distributed systems for storage of hazardous substances from the environmental safety position. Particular attention is paid to the information layer to ensure environmental safety (ES) of these systems, which operates on the results of the processing of regulatory documents, environmental monitoring data, analytical reports, etc. Its operation is based on a system of specialized automated workplaces (AWP), each of which generates a plurality of projections and calculations in order to provide ES, using information on three levels of detail: the physical, technological and logical. The structures of mathematical, informationtion, software and hardware provision of AWP are discussed. It is shown that the proposed AWP structure can be used in the design of the various systems for storage of hazardous substances and is aimed to provide ES in their operation.

Keywords: geographically distributed storage systems, hazardous materials, environmental security, information maintenance, environmental specialists, workstation

From the standpoint of environmental safety paper deals with the analysis and synthesis of geographically distributed systems for storage of hazardous substances. The main attention is paid to the technical maintenance of ecological safety of these systems which is determined by the layer of tool control system (TCS) in ecological situation monitoring channels, storage of hazardous substances and protection parameters of perimeter storage. Operation of TCS relies on the use of fiber-optic sensors based on fiber Bragg gratings in each of said channels and their methods of polyharmonic probing. Defined principles of joint measurement of temperature and pressure as the main storage options, optical absorption measurements of gas concentrations using remote multicomponent fiber optic infrared analyzer for monitoring the environmental situation are discussed. The information about the construction of storage areas perimeter security systems sensors are given. It is shown that the proposed TCS structure can be used in the design of the various systems of hazardous substances storage and is aimed at addressing issues of environmental safety in their operation.

Keywords: geographically distributed storage systems, hazardous materials, environmental security, technical support, fiber Bragg grating, measurement of temperature and pressure, multi-fiber optical infrared gas analyzer

The principles of construction of the interrogator for fiber optic sensors based on Bragg gratings, implementing radiophotonics measuring conversion technology on the principle of "optical wavelength - the amplitude and phase of a radio signal - measured value" are concerned. Their comparison with classical opto-electronic and radio photonic interrogator, implementing technology measurement conversion on the principle of "optical wavelength - radio frequency - the measured value" are produced. It is shown that the opto-electronic interrogator have significant limitations on resolution and interrogation speed and difficulty of simultaneous measurement of multiple, complexed to at least two measured values. Radiophotonic frequency interrogator, built on the basis of interferometers with additional dispersion conversion "rate - time" or optoelectronic oscillators allow to overcome the drawbacks of optoelectronic, but characterized by the complexity of the implementation of schemes of measuring conversion shift of the center wavelength of the grating in the information of unknown frequency. Radiophotonic amplitude-phase interrogator which is working at a known frequency - radio frequency envelope of the beat between the components of the two-frequency probe radiation signal, are proposed. This technique allows to exclude from the measurement process information search procedure of unknown frequency or amplitude of the maximum reflection of the FBG, which improves the speed and resolution of interrogation. Experimental results are presented to verify the procedure.

Keywords: fiber optic sensor, fiber Bragg grating, optoelectronic interrogator, radiophotonika, opto-electronic oscillator, measuring conversion type "optical wavelength - the frequency of the radio signal - measured value", measuring conversion type "optical wavel

The principles of construction of sensory passive optical networks, implemented the concept of the unified field of complexed fiber optic sensors and based on hybrid wave and time division multiplexing, are discussed. Their advantages in comparison with classical techniques of oneparameter multiplexing by time, wavelength, frequency, space, codes, etc. are shown. Prototypes and the structure of the sensory passive optical network with a hybrid wave and time division multiplexing are presented. The ability how to survey the point sensors, sensors of quasi-distributed and distributed types are defined, so as ability how to use the probing signals of pulse and continuous types. Especially the issues of similar probing of consecutive Bragg gratings using layered exclusion mechanisms (pulse sensing) and Q-factor measurement of the total envelope of the gratings spectrum (continuous amplitude-phase sensing) are explained. The requirements for the construction of sensory passive optical networks based on the hybrid wave and time division multiplexing in diverse parameters matching of Bragg gratings wavelength with multiplexers based on arrayed waveguide grating are presented. This requrements are based on the possibility of using the latter as support structures for interrogation of the first. Variants of the networks and their characteristics are presented.

Keywords: unified field of complexed fiber-optic sensors, sensory passive optical network, the hybrid time and wave division multiplexing, pulse and continuous probing, fiber Bragg grating, arrayed waveguide grating

Dynamics of gas and plasma flow in a Fassel type torch for the OPTIMA 2000 optical emission spectrometer (PerkinElmer, USA) was investigated using the original shadow Toepler visualizer. Significant transient instability of plasma’s flow was registered by the high-speed shadow imaging. Observable structure of the plasma torch was described and interpreted. The process of formation of toroidal vortices within the plasma torch was demonstrated, its frequency was estimated. Effect of reverse gas flow back to the plasma torch is revealed, interpreted and experimentally validated. It is noted that ambient air containing residues of the analyzed substances getting into a spectrally pure analytical zone of the plasma torch can lead to deterioration of metrological characteristics of a spectrometer because of “memory effect”. A set of practical recommendations to protect the analytical zone of the plasma torch from the contamination caused by the gas backflow of surrounding gas was formulated.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The principles of intelligent node of electroengine - brush are discussed. Into the brush an optical fiber sensor of wear and temperature on the basis of serial low reflection fiber Bragg gratings (FBG) is embedded. In contrast to existing, developed sensors are complexed and are able to simultaneously measure the temperature of the shift of the central wavelength of laser radiation reflected by the FBG, the amount of wear by means of registration the change in the length of the FBG arrays. Analysis of the signal reflected from the FBG allows you to define the parameters of the engine speed, temperature changes - the state of brush-collector unit. At a resolution of the interrogator in the wavelength about 2 ps the temperature sensor has resolution 0,2 ° C. Measurement error values of wear sensor, ​​determined by the stability of the amplitude parameters of laser radiation, are near tenth part of micrometer.

Keywords: friction, complexed fiber optic sensor, fiber Bragg grating, wear, temperature,electroengine, smart brush, rotation speed

The article compares the S- and SD-methods of sifting IMF. Was considered an example with a test signal and analysed the effectiveness of decomposition.

Keywords: empirical mode decomposition, error of decomposition, intrinsic mode functions, S-method, SD-method, normalized squared difference, operation of sifting, LabView, Hilbert-Huang transform

The concept of technical condition assessment based on the analysis of the Hilbert spectrum . Detailed description of vibro-acoustic signal processing algorithms and the principle of decision-making about the serviceability of the equipment.

Keywords: Hilbert-Huang transform, empirical modal decomposition, intrinsic mode functions, correlation functions, confidence interval,vibro-acoustic signal, evaluation of technical condition, Fourier transform, wavelet transform, Hilbert spectrum

For the control of composite constructions of shock-acoustic method (method of free oscillations) designed and developed measuring and diagnostic system with the original software package. Package of applied programs integrated into a virtual shell that enables to reduce setup time and debugging measuring and diagnostic complex. In the analysis of signals and issue decisions "correct-reject" uses probabilistic and statistical methods of evaluation.

Keywords: Shock-acoustic method, the local method of free oscillations, composite materials, technical diagnostics, nondestructive control, fast Fourier transform, the standard, confidence intervals, range, vibroacoustic signals, LabVIEW.

Developed the method of calculating the informative harmonic of vibroacoustic signals with using finite element modeling software ANSYS. For approbation technique experimental researches were conducted.

Keywords: Shock-acoustic method, local method of free oscillations, composite materials, technical diagnostics, nondestructive inspection, fast Fourier transform, ANSYS, vibroacoustic signals

This article outlines the rationale and relevance of the theme of its relevance in a real production. A brief description of the object of research , as well as the causes of the defects of the object. Later in the article describes the methods used to conduct the study , describes the applicable non-destructive and destructive methods . Describes the results obtained in the course of work , methods of mathematical processing , obtained correlations . The graphs dependencies. Next, a method developed that allows for quality control.

Keywords: granite, nondestructive testing, destructive testing, careers, ultrasound, natural frequency, correlations

It is presented in article that the technique of determination of stochastic similarity of functioning of one of subsystems of the intensified hydrothermal treatment - moistening of details of top of footwear. According to the offered technique there were received to be expressions for determination of output parameter of process "moistening" - the module of elasticity of skin and relative deviations of characteristics the subsystems proving similarity functioning of considered subsystems in stochastic sense. According to the offered technique expressions for determination of output parameter of a subsystem of "moistening" - the module of elasticity of skin and relative deviations of independent parameters of process of the vacuum and sorption moistening, providing with the possibility of forecasting of the minimum duration of processing were received.

Keywords: stochastic similarity, means-equipment-technology-production system, the processing intensified hydrothermal treatment, the vacuum and sorption moistening, the determined similarity, tanning and shoe materials

In this paper the method of improving safety by optimizing the frequency of maintenance (TO) radio technology products using the simulation model of the process and then consider the functioning of systems. Optimization algorithm based on simulation of embedded Markov chains using the Monte Carlo method. 
Keywords: security, maintenance, maintenance intervals, semi-Markov process, the simulation model.

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