Method and apparatus for current measurement using hall sensors without iron cores
US7719258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2008 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Oct 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for current measurement using Hall sensors without iron cores, used to estimate a flowing current in an electric conducting cable are provided by the exemplary examples of the present invention. The method for current measurement using Hall sensors without iron cores includes the following step: (a) providing Hall sensors to be attached to or located near the electric conducting cable; (b) using each of the Hall sensors to measure the flux density of the magnetic field generated by the flowing current, so as to generate an output voltage according to the flux density of the magnetic field; (c) performing a statistical operation on the output voltages of the Hall sensors, so as to generate a statistical voltage; (d) estimating the flowing current in the electric conducting cable according to the statistical voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.