Force measuring apparatus with optical sensor enabling limitation of eccentricity defects in particular for bathroom scales and method of manufacturing apparatus of this kind
US5952647A · kind A · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Mar 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A force-measuring apparatus is provided having a first plate, a second plate disposed above the first plate and spaced apart from the first plate, an optical sensor having at least one optical fiber disposed between the first plate and the second plate, and a clamp for moving the first plate and the second plate together to compress the optical fiber, thereby applying a prestressing force to the fiber to reduce eccentricity effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.