Method of locating the position of linear objects
US9664810B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Nov 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/104
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of locating a position of a linear object, including arranging a first and a second reactor around a measuring point, the first reactor generating an induced voltage corresponding to an X-direction component of a magnetic field, the X direction perpendicular to a running direction of the object, and the second reactor generating an induced voltage corresponding to a Y-direction component of the field, the Y direction perpendicular to the X-direction and the running direction; obtaining a first reactor induced voltage and a second reactor induced voltage; setting an X-distance as a first distance from the point to the object center, and setting the Y-distance as a second distance; and estimating a direction in which the linear object is located as viewed from the point, by regarding an X-distance to Y-distance ratio as equal to a ratio of the first voltage to the second voltage multiplied by a coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.