METHOD OF MEASURING MEAN-SQUARE VALUES OF SINUSOIDAL VOLTAGE AND METER THEREFOR (VERSIONS) Russian patent published in 2016 - IPC G01R19/02 

FIELD: measuring equipment.

SUBSTANCE: invention relates to electric radio measurements and can be used in designing digital devices for measuring mean square values of sinusoidal signals. Method and its versions is determining parameter of sinusoidal voltage by measuring only its instantaneous value selected strictly at certain moment, which depends on analysed voltage frequency and measured parameter. For example, at moments of time $$\frac{1}{8}T,\frac{3}{8}T,\frac{5}{8}T$$ and $$\frac{7}{8}T,$$ when module of instantaneous value of sinusoidal signal is equal to its root mean square value U_RMS. Main functional units of device implementing method are pulse shaper, period of time meter, interval former, binary codes comparator, analogue-to-digital converter and averaging unit.

EFFECT: enabling implementation of relatively simple digital devices with wide range of measured values.

10 cl, 6 dwg