Перегляд за автором "Volkov, V. M."

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  • Зображення мініатюри
    Публікація
    Multiprobe Microwave Multimeter Error Definition on Its Sensor Error Base
    (Publishing House ”Izvestiya Vuzov”, 2005) Volkov, V. M.; Zaichenko, O. B.; Yevdokimov, V. V.
    This paper propose a new method of estimation of multiprobe microwave multimeter algorithms precision by mean of accumulation of partial error. The least square solution is used for variance and covariance matrix definition. The weighted coefficient is obtained from algorithms derivatives with respect to intermediate variable. Substituting the expression for standard deviation (variance) end weighted coefficient in formula for partial error accumulation we can compare different algorithms, study frequency properties of algorithms.
  • Зображення мініатюри
    Публікація
    Multiprobe Microwave Multimeter Functional Design
    (Kontrast Publishing Enterprise, 2004) Volkov, V. M.; Zaichenko, O. B.
    Multiprobe microwave multimeter is a new type of measurement device representing an automatic multichannel system consisting of a very high frequency unit with passing power sensors and a computing unit on the basis of the microcontroller or PC and is intended for measurement incident, reflected and passing power, module and phase of a termination reflection coefficient, executing generator and termination checking in an" hot" mode. The methodology of the working MMM design with equidistant sensors arrangement.
  • Зображення мініатюри
    Публікація
    Passing Power Sensors and Multiprobe Microwave Multimeter on Its Base
    (SPIE, 2006) Volkov, V. M.; Nikitenko, O. M.; Zaichenko, O. B.; Zharko, Yu. G.; Isichko, A. L.
    The mathematical modeling of thin wall waveguide heating process allows to determine the law of temperature field distribution on their surface. The new physical models of sensors on the absorbing wall principle in the coaxial transmission line were proposed and dissipative losses dependence on frequency in one, two and three layer absorbing wall was analyzed. Methods of calculation and designing of the both quasipoint and extended sensors, located on the narrow and wide waveguide walls were proposed: minimization of effective reflection.
  • Зображення мініатюри
    Публікація
    Wideband Multiprobe Microwave Multimeter
    (IEEE AP-S Publishing House ”Izvestiya Vuzov” (Kyiv, Ukraine), 2003) Volkov, V. M.; Zaichenko, O. B.
    The device, sensors and mathematics permit us to get new results in precision, performance function linearity, long term stability characteristics and so on. A multimeter, for passing, incident, reflected power, reflection coefficient module, and phase and wavelength.