Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back A building concept and practical implementation of system VFS (voltage to frequency convertor) V.P. SHAROV DC voltage measurement instruments based on frequency methods have two obvious advantages: accuracy and high interference immunity. Functionally completed VFS’s used at measurement section of instrument allow building the single plate devices being part of information- measuring systems. Keywords: voltage to code convertor, VFS, voltage to frequency convertor, conversion errors, conversion algorithm, starting conditions of integration, optoelectronic key. Contacts: - Pp. 64-68.