Test apparatus and method for determining at least one characteristic of a plurality of test specimens
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United States of America Patent
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Jul 30, 2013
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N/A
app pub date -
Mar 12, 2010
filing date -
Sep 19, 2008
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Abstract
A test apparatus and method for determining at least one characteristic of a test specimen. An exemplary test specimen is a shape memory metal alloy and an exemplary characteristic is a transformation temperature of the shape memory metal alloy. The test apparatus may include a chiller unit including a tank containing a chilling medium, such as isopropyl alcohol or denatured alcohol, which holds a removable fixture tray that can accommodate up to ten specimens, or more. The fixture tray holds the test specimens in an initial deformed condition, and the cooling medium may be gradually heated to induce transformation of the specimens. The test apparatus may include a vision-based optical system which includes a camera that tracks the specimens within its field of view.
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