Force and deflection sensor with shell membrane and optical gratings and method of manufacture
US7903907B1 · kind B1 · utility
25Cited by
17References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 29, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for force is formed from an elastomeric cylinder having a region with apertures. The apertures have passageways formed between them, and an optical fiber is introduced into these passageways, where the optical fiber has a grating for measurement of tension positioned in the passageways between apertures. Optionally, a temperature measurement sensor is placed in or around the elastomer for temperature correction, and if required, a copper film may be deposited in the elastomer for reduced sensitivity to spot temperature variations in the elastomer near the sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.