Fabric-based strain gauge
US7750790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2007 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | May 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/102
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a strain gauge which includes a fabric base and at least one conductive yarn. In addition, the fabric base is weaved with a plurality of non-conductive yarns, and the fabric base thereon defines a sensing direction. Moreover, each of the conductive yarn is gimped by a textile process with one of the non-conductive yarns and is woven through the fabric base along the sensing direction. Furthermore, the at least one conductive yarn is capable of being applied by an electric power; when an external force acts on the fabric base, the geometrical property of the at least one conductive yarn alters so that a change of an electric property associated with the applied electric power is sensed to indicate an elongation of said strain gauge applied by the external force along the sensing direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.