METHOD FOR DIGITAL MEASUREMENT OF DURATION OF TIME INTERVALS Russian patent published in 2011 - IPC G04F10/04 

FIELD: physics.

SUBSTANCE: alternating odd and even separate measurement intervals with duration equal to T_x+τ_x and T_x-τ_x, where T_x is the period of the input signal, τ_x is the duration of the input signal, are formed. Quantising pulses with repetition period T₀ during n measurement intervals T_x are counted. The averaged value of duration of the input time interval over the overall measurement interval is determined using the formula: where n is the even number of periods of the input signal in the overall measurement interval; T₀ is the repetition period of the counted pulses; N_2j-i and N_2j denote the number of quantizing pulses in the j-th odd and even separate measurement interval, respectively.

EFFECT: wider range for measuring duration of time intervals while increasing measurement accuracy and simplifying hardware implementation.

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