RMS voltage measuring system for precise evaluation of electric quantities

This paper is about the design and the construction of a system for the measurement of the RMS voltage. One or more of these systems can be employed as building blocks for a wide range of applications in the field of electrical metrology. The first implementation demonstrated its functionality and the possibility to reach a stability of the AC voltage measurement in a wide frequency range with an accuracy within 10 parts in 10, limited only by the DC voltage accuracy of the DAC employed.