Curvilinear encoder system for position determination
US10809101B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2020 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Mar 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A curvilinear encoder is provided in which an incremental or absolute position for a cart can be detected on a track by applying one or more excitation signals and receiving one or more pick up signals. Analogous to a transformer arrangement, an encoder mover can be placed on the cart moving along the track, and an encoder stator can be placed on the track separated by a gap. The one or more excitation signals can be applied to the one or more excitation coils on the mover or the stator to generate one or more magnetic fields, and the one or more pick up signals can be received by one or more pick up coils on the mover or the stator for sensing changes in the magnetic fields produced by motion of the mover on the track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.