METHOD OF DETERMINING OF CABLE LINE FAILURE POINT Russian patent published in 2018 - IPC G01R31/11 

FIELD: measurement technology.

SUBSTANCE: invention relates to metrology. Method for determining the location of the cable fault is to probe the measured cable line with voltage pulses, receive pulses, reflected from the inhomogeneities of the wave resistance, isolate reflected from the inhomogeneities of the wave resistance pulses on the indicator with a time scan of the beam, corresponding to the location of the cable damage, calculate the distance to the fault location of the cable by the time delay of the reflected pulse with respect to the probing pulse according to the formula taking into account the distance to the fault location of the cable determined by the time delay of the reflected pulse with respect to the probing pulse, speed of electromagnetic wave propagation in the cable line, delay time of the reflected signal relative to the probing signal, mcs; speed of propagation of an electromagnetic wave in a vacuum, coefficient of shortening of an electromagnetic wave in a cable line. Then calculate the ratio of the twist, which takes into account the calculated distance to the point of damage to the cable according to the formula, taking into account the specified distance to the point of damage to the cable, coefficient of twist, distance to the fault location of the cable, determined by the time delay of the reflected pulse with respect to the probing pulse. Coefficient of twisting is calculated taking into account the coefficient of twist, the length of the twist pitch, the pitch of the twist, the twist factor.

EFFECT: increased measurement accuracy.

1 cl, 2 tbl