Thermal measuring and testing – Thermal testing of a nonthermal quantity – Expansion or contraction characteristics
Reexamination Certificate
2005-07-12
2005-07-12
Verbitsky, Gail (Department: 2859)
Thermal measuring and testing
Thermal testing of a nonthermal quantity
Expansion or contraction characteristics
C374S006000, C073S760000
Reexamination Certificate
active
06916115
ABSTRACT:
Instruments and methods for measuring a property of a shape memory alloy are provided. The instrument includes a base plate, a non-contact movable mass, a force gauge, an actuator, a biasing spring, a heater for heating the shape memory alloy, and a non-contact displacement detector. The biasing spring and the shape memory alloy are disposed whereby a force applied thereby is applied substantially through a center of stiffness of the movable mass. The displacement detector measures a displacement of the movable mass in a colinear direction with a direction of movement of the movable mass and with a direction of the force applied by the biasing spring and the shape memory alloy. The linear motion stage comprises a housing and at least one guide bar, and wherein a calculated axial expansion of the guide bar is substantially equal to a calculated axial expansion of the base plate.
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Chikkamaranahalli Sumanth
Lumpp James E.
Rawashdeh Osamah A.
Vallance Robert Ryan
Walcott Bruce L.
King & Schickli PLLC
University of Kentucky Research Foundation
Verbitsky Gail
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