METHOD OF DETERMINING CURRENT IN CHANNEL OF ELECTRIC BREAKDOWN OF DIELECTRIC MATERIAL Russian patent published in 2016 - IPC G01R31/12 

FIELD: measuring equipment; electricity.

SUBSTANCE: invention relates to physics of electric breakdown and can be used for determination of amplitude and duration of current pulse electric breakdown in dielectric materials. Summary: high constant voltage U from previously charged capacitor with capacitance C_d is supplied to electrodes with dielectric sample arranged between them. Voltage pulse across waveform is measured at breakdown on connected in series with electrodes measuring resistor R circular frequency ω and oscillation damping time τ. Resistance R₀ is determined by calculation, and desired values of amplitude and duration of current are found respectively using formulae I_m=U/R₀, Δt=R₀C.

EFFECT: high accuracy of determining current in channel of electric breakdown of dielectric materials.

1 cl, 5 dwg