NASA NTRS · 20030068895
Capacitive Extensometer
Abstract
The present invention provides for measurements of the principal strain magnitudes and directions, and maximum shear strain that occurs in a porous specimen, such as plastic, ceramic or porous metal, when it is loaded (or subjected to a load). In one embodiment the invention includes a capacitive delta extensometer arranged with six sensors in a three piece configuration, with each sensor of each pair spaced apart from each other by a predetermined angle, such as 120 degrees.
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Gail P Perusek. 2003-06-24. Capacitive Extensometer. https://ntrs.nasa.gov/citations/20030068895
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