Method for locating conductive faults in telephone and similar cables
US4929900A · kind A · utility
3Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | May 19, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The resistance of a cable conductor between a measuring point and a conductive fault is measured using an electronically regulated current source and a very high resistance voltmeter in such a way as to eliminate contact and fault resistance as a source of error. Distance to the fault is determined by calculation from the known resistance per unit length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.