MEASUREMENT METHOD OF DIFFERENTIAL RESISTANCE OF NON-LINEAR BIPOLE WITH TEMPERATURE-DEPENDENT VOLT-AMPERE CHARACTERISTIC Russian patent published in 2015 - IPC G01R27/02 

FIELD: electricity.

SUBSTANCE: sequence of short current pulses of high duty ratio with varying amplitude is supplied to a controlled bipole, and amplitudes of voltage pulses are measured on the controlled bipole. Amplitude of current pulses is changed as per a harmonic law with the specified frequency Ω with average amplitude I_p and modulation depth M. On modulation frequency Ω there measured is amplitude U_m of an envelope of pulse voltage on the controlled bipole and differential resistance is calculated by the formula $${R_{dif}|}_{I_p}=U_m/M{I}_p.$$

EFFECT: improving measurement accuracy of differential resistance of a non-linear bipole with a temperature-dependent volt-ampere characteristic.

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