Author/Authors :
Chernoyarov, O. V. Department of Electronics and Nanoelectronics - Faculty of Electrical Engineering - National Research University “MPEI”, Moscow, Russia , Glushkov, A. N. Department of Infocommunication Systems and Technologies -Voronezh Institute of the Ministry of Internal Affairs of the Russian Federation, Voronezh, Russia , Lintvinenko, V. P. Department of Radio Engineering - Voronezh State Technical University, Voronezh, Russia , Matveev, B. V. Department of Radio Engineering - Voronezh State Technical University, Voronezh, Russia , Faulgaber, A. N. Department of Electronics and Nanoelectronics - Faculty of Electrical Engineering - National Research University “MPEI”, Moscow, Russia
Abstract :
This paper introduces a meter of the root-mean-square value of deterministic and stochastic signals of
an arbitrary shape that are generated over the set time interval. Such a meter involves only the
minimum number of simple arithmetic operations to obtain results, and it ensures a high degree of
measurement accuracy. For this purpose, the direct calculation of the signal root-mean-square value is
applied while the measurement of the half-period average straightened signal value is carried out by
means of the traditional measurement devices. Implementation of this meter requires neither the
knowledge of what the signal period is, nor the synchronization with the processed sampling.
Simulation is then carried out demonstrating the high efficiency of the proposed measurement
algorithm. We analyze the characteristics of the meter operating within a wide frequency range of the
measurable signals. The recommendations concerning the hardware implementation of such a meter by
means of the field programmable gate arrays are considered. The meter can be used when designing
digital high-frequency AC voltmeters and ammeters and it can provide the readings that do not depend
upon the signal waveform.
Keywords :
Alternating Signal , Root-mean-square Value , Meter , Fast Digital Processing , Simulation
