Non-contact velocity measurement instruments and systems, and related methods
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United States of America Patent
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Apr 14, 2020
Grant Date -
Feb 1, 2018
app pub date -
Jul 25, 2017
filing date -
Jul 26, 2016
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Abstract
Methods for calibration of non-contact velocity measurements and systems for implementing the same are described. Generally, the method comprises inducing a shock wave into a sample at a stress intensity that varies across the sample's elastic limit, which corresponds to the elastic-plastic state transition of the sample. That transition state may be at the sample's Hugoniot elastic limit. The velocity of the sample is measured using a non-contact velocity measurement instrument such as a velocimeter. The measurement may be compared to a predicted velocity or a velocity measurement made by another system to determine calibration parameters.
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