Linear encoder and a guide unit on which it is equipped
US5606256A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F1/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a linear encoder that does not require the connection cable to be pulled around and has a simple constitution, while also contributing to smooth operation of the moving side as well as reduced size of the apparatus. In addition, the present invention also relates to a guide wherein a guiding device composed of a track rail and so forth is added to the linear encoder. In addition to arranging a plurality of detecting elements composed of electromagnetic conversion elements and so forth at prescribed intervals along the direction of relative motion on the stationary side, a detected element composed of a permanent magnet is arranged so as to oppose the above-mentioned detecting elements on the moving side, thus obtaining the above-mentioned effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.