Electroactive polymer sensors
US6809462B2 · kind B2 · utility
365Cited by
22References
117Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Apr 20, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention provides sensors that comprise a transducer that converts between mechanical energy and electrical energy. The transducer comprises an electroactive polymer in electrical communication with at least two electrodes. When a relatively small voltage difference is applied between the electrodes, deflection of the polymer results in a measurable change in electrical energy for the transducer. The change in electrical energy may correspond to a change in resistance, capacitance, or a combination thereof. Sensing electronics circuits in electrical communication with electrodes detect the electrical energy change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.