FIELD: measuring technique.
SUBSTANCE: method can be used for measurement of effective value of voltage in electric circuits. Signal after being squared, is subject to integration; the signal is proportional to current value of voltage. Result of integration is divided by value of time interval of integration and square root is derived from it. Voltage after it was squared is delayed for two fixed time intervals. Then they are integrated and result of integration is found from moment of equality of three values of results of integration. Result of measurement is found from received integral values.
EFFECT: improved precision; higher speed of operation; widened functional abilities.
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