System and method for locating resistive faults and interconnect errors in multi-conductor cables
US4322677A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1979 |
| Grant date | Mar 30, 1982 |
| Priority date | — |
| Expiry date | Mar 16, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/60
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
System and method for locating resistive faults and interconnect errors between the conductors of a cable such as a telephone cable. An alternating magnetic field is applied to the cable at successive points along the same and the signal produced by the induced voltage is monitored at one end of the cable. With a resistive fault or an interconnect error, the signal at the end of the cable is discernibly greater when the magnetic field is applied between the sensor and the fault than when the field is applied beyond the fault. In either case, the location of the fault is indicated by the change in the sensor signal as the field is applied at points on opposite sides of the fault. The signal information is communicated to the person who is applying the magnetic field to the cable for use by him in locating the fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.