In the paper the SPICE model of functionally dependent voltage and current sources is proposed, which is used in the process of schematic simulation of impedance signal converters. This simulation allows analyzing the signal conversion parameters, functional analysis of circuit decisions, optimization of operating modes, etc. The results of model research give an opportunity to calculate the influence of interferences of harmonic signals of activating sources used in signal converters of impedance
In this paper, the results of the development and modeling measurement of impedance converters are presented. The main nodes, the parameters of which are decisive in terms of operation accuracy of the impedance measuring converters, are quadrature synchronous detectors and integrators of the detected signal.
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