Torque transducers
US5557975A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Mar 15, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A torque transducer comprises strain measuring means on a torque deformable shaft and slipring means for transmitting the torque signals from the rotating shaft to stationary brush means. The slipring means are annular disc of carbon material, such as sintered graphite and the brush means are individual strips of flexible metal passing under tension partially around the respective sliprings. The electrical contact between the strain sensing means and the carbon disc is by means of printed circuit boards each of which has an annular or substantially annular portion with its conductive coating in face-to-face contact with a face of a respective carbon disc. The carbon disc and printed circuit boards being in axial compression on the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.