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  • System collects construction parameters of intelligent building based on fiber optic sensors

    In this paper, discuss principal technical problems of smart home and building. Following factors impact and effect on the physical properties: mechanical, chemical, biological, air, acoustic vibration..., which affect quality of life and especially house condition. We derive requirements of each type of sensor systems that used in the control and smart home management. Were formed classification of sensors on subsystems, which should be placed in the responsibility area of smart home management system, in order to provide a comprehensive and com-plete data collection about state of smart home. The authors emphasize advantages and possible replacement of fiber optic sensors to measure some main parameters, which are required for monitoring and control smart home. In addition, they focus on fiber optic strain gauges to monitor the status of the house foundations. Introduced an optical fiber sensor structure. Analyze structure, technical parameters and even the operating principles of each sensor component. The sensor is contained some main elements: LED, force transmission plate, sensor (fiber optic cable), metal enclosure, panel, fiber optic cable. This article suggests some options for using fiber optic sensors to monitor the foundations building condition.

    Keywords: Smart home, intelligent building management, the factor acting on the building, sensor, fiber optic material, sensor, fiber optic sensor, deformation, design, building foundation

  • Production of nanosized copper powders from electrolytes with water soluable polymer

    The effect of two surface-active substances (SAS) - polyvinylpyrrolidone (PVP) and polyacrilamide (PAA) on formation kinetics of anodic synthesized electrolytes for copper powders production was reviewed, as well as product properties. It was found that the copper powder properties defined by polymer film of PVP and PAA formed on cathode surface. Nanosized particles percentage increasing by dints of copper ions direct discharge from ammonia complex ions provided by polymer film. In the electrolyte containing PAA is possible to obtain copper powder with nanosized (less 100 nm) particles content of 50,2%, average size in nanosized range is 43nm with needle-dendrite particle shape

    Keywords: electrolytic copper powder, vibrating cathode, polarization curve, chronopotentiometry, potential dip after current tripping, particle size distribution, water soluble polymer, nanosized particle, ammonia chloride, polyvinylpyrrolidone, polyacrilamide, am