INVESTIGATION OF A LINEAR RMS VOLTAGE CONVERTER WITH MUTUALLY INVERSE QUAD UNITS USING NATIONAL INSTRUMENTS MULTIFUNCTION DATA ACQUISITION DEVICE PCI 6221
Abstract
For the linearization of the AC voltage in a variety of measuring instruments and especially in the voltmeters, use linear RMS voltage converter. In this paper was provided research of the dependence of the nonlinearity error linear RMS voltage converter from coefficient of amplification DC amplifier using National Instruments multifunction data acquisition device pci 6221.