Ground impedance measurement of a conduit system
US10451576B2 · kind B2 · utility
2Cited by
14References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Apr 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N17/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system to determine the ground impedance of a conduit system includes a conductive sheath and a resistor of known value. The conductive sheath is configured to surround a portion of a conductor housed within a conduit system. Capacitive coupling occurs between the sheath and the conductor to establish a voltage source. The resistor is electrically coupled between the voltage source and a metal component of the conduit system, and a voltage drop is read across the resistor to determine the health of the ground impedance of the conduit system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.