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Information × Registration Number 0203U000068, 0100U002408 , R & D reports Title Precision improvement of reproduction and transfer of the AC voltageVolt unit by a standart measuring device. popup.stage_title Head Tuz Julian Mikhailovich, Registration Date 13-01-2003 Organization SRI automation of experimental researches of National Technical Unaversiti Ukraine "Kiev polytechnical institute" popup.description2 Performing the work is offered new structure, algorithms and methodses of the reproducing the unit of the voltage of alternating current. In base prescribed structured-algorithmic methods of increasing to accuracy. This allows to go from producirung mode strictly givenned importances to producirung mode drawn near importances with the further rercalculation to given importance by creation to real model and decisions of the inverse equation of the measurement on each stage. So appears the possibility of the using the more expensive element base. The Study of the manifestations thermoelectrical effect has pointed to possibility of the selection with factor from 1 before 10 thermoelements with relative deflection of importance EMF power under current at a rate of ten millionth. Such inaccuracy allow to build master thermocomparator. Way of the transformation of the amplitude of the variable voltage is offered For practically full exception of the action thermoelectrical effect at time lag since time lag is measured with the most accuracy amongst other physical values, but reproducing the constant voltage by means of cameras Dzhozefsona on one - two orders more exactly, than variable voltage and appears the possibility to realize the qualification of the thermoelements with the further automatic use the adjustments. Patent of the Ukraine is received On this way. In work is solved problem of the making the sources of high power in broad range of the frequencies. The Realization of this problem prevents the speed limit a groth voltages on transistor. So high-tension measuring amplifiers with input voltage 1000 В within the range of frequencies from 0 before 100 кгц is offered to build with virtual earth and low capacity for the bases. Product Description popup.authors popup.nrat_date 2020-04-02 Close