![Scientific and Technical Journal of Information Technologies, Mechanics and Optics](/images/mag-ntv.png)
DETERMINATION OF ZONES WITH DIFFERENT CHEMICAL COMPOSITION ON REMOTE SURFACES
![Scientific and Technical Journal of Information Technologies, Mechanics and Optics](/images/mag-ntv.png)
Annotation
Subject of Research. A new method of thermal imaging spectroscopy is presented giving the possibility to determine the chemical composition of defects formed as a result of the surface exposure by chemical, biochemical reagents, point contamination of the surface by biological organisms far from the operator in hard-to-reach places where there is no possibility for application of the known optical and spectroscopic equipment. Method. The surface study is performed by thermal imaging camera with simultaneous irradiation of the surface by laser radiation with a wavelength that coincides with the spectral absorption region of the defect substance. The presence of a defect on the surface is determined on the screen of the thermal imaging camera as a zone of contrast between the background temperature and the defect temperature. When the wavelength of the laser radiation coincides with the region of the characteristic absorption band in the absorption spectrum of the defect matter, it becomes possible to determine the chemical composition of the defect. Main Results. A mechatronic module for laser beam scanning over a surface is developed. Simultaneous measurement of the temperature field with the help of a thermal imager and feedback makes it possible to carry out work on the search for zones with the supposed presence of certain zones with definite chemical composition. Experimental results of the defects study are presented with different values of absorption coefficient applied on the heavyweight paper surface in the form of thick drop-shaped layers. A comparative analysis of the experimental and calculated values is carried out. The experiment scheme and the mechatronic complex structure are presented. Practical Relevance. The proposed method can be used to determine contamination spots on the surface of reservoirs, to search for material evidence on unfolded surfaces in forensic examination, to determine the sites of the surface contamination by biological objects during mycological examinations.
Keywords
Постоянный URL
Articles in current issue
- SKIN RESEARCH BY SCATTERING ELLIPSOMETRY
- BRAGG GRATINGS MULTIPUSLE INSCRIPTION EFFICIENCY DEPENDENCE ON ANGULAR POSITION OF ELLIPTICAL STRESS CLADDING IN BIREFRINGENT OPTICAL FIBERS
- DEVELOPMENT AND RESEARCH OF FIBER-OPTIC HYDROPHONE PROTECTIVE HOUSING
- METHOD AND TECHNOLOGY OF DELIVERING OPTICAL RADIATION TO BIOLOGICAL MICRO-OBJECTS
- LED DEVICE FOR PHOTODYNAMIC THERAPY OF ONYCHOMYCOSIS
- TRAJECTORY CONTROL FOR A ROBOT MOTION IN PRESENSE OF MOVING OBSTACLES
- TRACKING AND CLASSIFICATION OF HEAD MOVEMENT BY INERTIAL MEASUREMENT UNIT DATA
- NANOPARTICLES OF EXOTIC EPSILON-IRON OXIDE (III) AS THE WORKING ENVIRONMENT OF NANOMAGNETIC LOGIC DEVICES
- SIMULATION OF INFRARED SPECTRA OF MEDICAL SUBSTANCES BY DIFFERENT QUANTUM MECHANICAL METHODS
- RESEARCH OF “WATER GLASS - GRAPHITE MICROPARTICLES” COMPOSITE MATERIAL BY THERMOGRAVIMETRY METHOD
- STUDY OF PLASMOCHEMICAL PROCESSING EFFECT ON THE PROPERTIES OF POLYMER FILMS BASED ON POLYVINYLCHLORIDE
- ORGANIZATION OF SIMULATION EXPERIMENTS IN THE DESIGN OF DISTRIBUTED COMPUTER SYSTEMS WITH REDUNDANT DATA TRANSMISSION
- METHOD FOR REAL TIME PROCESSING OF OPEN DATA CONTAINING GEOCONTEXT MARKUP
- COOPERATIVE INTERACTION OF EXPERT NETWORKS PARTICIPANTS: STATE-OF-THE ART ANALYSIS
- MULTI-STEP SERVICE OF REQUESTS CRITICAL TO QUEUEING DELAYS IN MULTI-TIER SYSTEMS
- STUDY OF ERRORS OF SOME METHODS FOR SEPARATING OVERLAPPED SPECTRAL LINES UNDER NOISE EFFECT
- DETECTION OF HYDRO-ACOUSTIC COMMUNICATION SIGNAL BY ENERGY ALGORITHM IN LOW FREQUENCY PASSIVE MODE
- FEATURES OF DIFFERENCE SCHEME WITH CUSTOMIZABLE DISSIPATIVE PROPERTIES IN CASE OF TWO-DIMENSIONAL GAS AND GAS-PARTICLE DYNAMICS PROBLEMS
- MODELING OF NON-PLATFORM INERTIAL NAVIGATION SYSTEM AS A COMPONENT OF AIRCRAFT NAVIGATION COMPUTER STAND
- SIMULATION OF CENTRIFUGAL PUMP IMPELLER WITH MAXIMUM CAVITATION EFFECT
- NUMERICAL SIMULATION OF REGULAR AND MACH REFLECTION OF SHOCK WAVE FROM THE WALL
- MODELS AND METHODS OF INFORMATION MANAGEMENT SUPPORT IN CASE OF FINANCE PLANNING
- GENERATION OF SPECTRAL DENSITY MATRICES FOR MULTICHANNEL CONTINUOUS SYSTEMS UNDER WHITE NOISE ACTION
- SEQUENCES OF DIFFERENTIAL INEQUALITIES FOR LYAPUNOV FUNCTIONS IN STABILITY ESTIMATES OF NONLINEAR DYNAMICAL SYSTEMS
- NEW ALGORITHM OF VARIABLE PARAMETERS IDENTIFICATION FOR LINEAR REGRESSION MODEL
- ON FLAME FRONT PROPAGATION RATE IN CYLINDRICAL TUBE WITH MULTIPOINT IGNITION BY STREAMER MICROWAVE DISCHARGE