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US 12,331,730 B2Granted
Shape memory polymer actuators
AssigneeSoreq Nuclear Research Center
InventorsRonen Verker, Debby Margoy, Irina Gouzman, Eitan Grossman, Asaf Bolker, Noam Eliaz
Life of this patent
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Abstract
Resistive heating elements are embedded in a shape memory polymer actuator. Sensing elements are associated with the resistive heating elements. The sensing elements sense changes in the resistive heating elements and correlate the changes with deformation of the shape memory polymer actuator.
Claims7
An assembly comprising:
- resistive heating elements embedded in a shape memory polymer actuator, called an SMPA;
- and
- sensing elements associated with said resistive heating elements, said sensing elements configured to sense changes in said resistive heating elements and to correlate said changes with deformation of said SMPA, wherein said resistive heating elements comprise carbon fiber-based resistive heater elements, and upon deformation of said SMPA, a density of pi-bond electrons of said carbon fiber-based resistive heater elements changes.
Dependencies are inferred from the claim text.