Shield integrity monitor
US5463317A · kind A · utility
11Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus which can non-intrusively verify the integrity of shielding on electrical wiring. The method utilizes the natural resonance of the voltage transfer function of the shielded wire. The frequency of this resonance is an indication of the self inductance of the cable. A change in the resonant frequency indicates a change in the self inductance caused by a failure in the shield circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.