Smart memory alloy control

Details Smart memory alloy control Smart memory alloy control

2006-04-04

2009-12-29

Allen, Andre (Department: 2855)

Power plants

Motor operated by expansion and/or contraction of a unit of...

Mass is a solid

C600S145000

Reexamination Certificate

active

07637105

ABSTRACT:
The invention relates to a method for improving performance and life of a material adapted to contract when heated to a critical temperature such as shape memory alloy wire (SMA). The method includes the steps of measuring ambient temperature before activation, measuring voltage applied to the SMA wire and/or current flowing in the SMA wire, calculating power and energy required to heat the material from the ambient to the critical temperature and providing the calculated power and energy.

REFERENCES:
patent: 4930494 (1990-06-01), Takehana et al.
patent: 6019113 (2000-02-01), Allston et al.
patent: 7197921 (2007-04-01), Kramer
patent: WO 2004/01235 (2003-12-01), None

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