FIELD: physics; measurement.
SUBSTANCE: invention relates to electrical measurement techniques and can be used for determining site of damage in a cable. A test sinusoidal signal with frequency f is transmitted from a highly stable generator between the cable jacket and earth. A sensor is moved along the cable. At the receiving part the test signal with frequency f is recorded and compared with a signal at the same frequency from a highly stable reference generator, pre-synchronised with the driving generator. Difference in phase between the signal from the reference generator and signal recorded above the cable using the sensor is determined. Damage to the cable is determined from the change in phase difference between signals.
EFFECT: increased accuracy and efficiency of determination of site of damage in a cable.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR CABLE INSULATION DAMAGE POINT DETERMINING | 2019 |
|
RU2715360C1 |
| DEVICE FOR DETERMINING DAMAGED POINT OF CABLE | 2015 |
|
RU2585323C1 |
| PROCEDURE LOCATING POINT OF FAULT IN CABLE | 2001 |
|
RU2207582C2 |
| METHOD OF DETERMINING PLACE OF DAMAGE IN CABLE METAL ENVELOPE | 1991 |
|
RU2009516C1 |
| METHOD OF LOCALIZING CABLE DAMAGE | 0 |
|
SU943610A1 |
| DIGITAL PHASEMETER | 2017 |
|
RU2661065C1 |
| METHOD OF DETECTION OF DEFECTIVE POINT ON METAL SHEATH OF CABLE | 0 |
|
SU1803887A1 |
| DEVICE FOR DETERMINING INSULATION DAMAGE OF ELECTRIC CONDUCTOR | 0 |
|
SU1525633A1 |
| SYSTEM FOR DETERMINING LOCATION OF CRASHED AIRCRAFT | 2015 |
|
RU2630272C2 |
| LINE LOCATOR | 2011 |
|
RU2482517C1 |
