Device and method for measuring a change in length of a sample and/or for measuring a deformation force on a sample
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United States of America Patent
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Oct 17, 2017
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app pub date -
Feb 19, 2015
filing date -
Feb 19, 2014
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Abstract
A system for measuring change in length and/or deformation force on a sample in a longitudinal direction. The system is useful in thermomechanical analysis and/or dynamic-mechanical analysis, and comprises a pushrod extending in the longitudinal direction which exerts force on the sample, and a device measuring movement of the pushrod resulting from the change in length or deformation of the sample in the longitudinal direction. The measuring device includes: a pushrod base mounted on a stationary base with a guide so as to be movable in the longitudinal direction; a controllable drive for moving the pushrod; a detector measuring the force exerted by the pushrod on the sample; and a path sensor for measuring the movement of the pushrod.
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