Directional sensor with means for adjusting cancellation of interfering electromagnetic field
US10801318B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2019 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for mitigating magnetic sensor errors are contemplated. In some aspects, the disclosed technology provides a method for reducing measurement errors in a directional module of a drilling system that includes steps for: receiving a current measurement from a current sensor, wherein the current measurement is associated with electrical current received at the current sensor via a first conductive branch and a second conductive branch, receiving a field measurement from a magnetic sensor, and associating the current measurement from the current sensor with the field measurement from the magnetic sensor. Systems and machine-readable media are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.