Actuation system for the control of multiple shape memory alloy elements
US5763979A · kind A · utility
94Cited by
9References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 28, 1997 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00867
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An actuation system for the control of multiple shape memory alloy elements is achieved by arranging the shape memory actuators into a matrix comprised of rows and columns which results in approximate a fifty percent reduction in the number of electrical connecting wires. This method of actuation provides the scope for resistance measurements of the shape memory alloy actuators and therefore feedback control of the actuators can be accomplished without additional wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.