Non-powered impact recorder
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United States of America Patent
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Sep 1, 2015
Grant Date -
Oct 24, 2013
app pub date -
Apr 24, 2012
filing date -
Apr 24, 2012
priority date (Note) -
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Abstract
A non-powered impact recorder is disclosed. The non-powered impact recorder includes a resonator tuned for a resonant response within a predetermined frequency range. A reduced cross-sectional area portion is formed within the resonator and configured to structurally fail when the resonator experiences the resonant response. Additionally, the non-powered impact recorder includes an electric circuit element disposed about the reduced cross-sectional area portion of the resonator. Upon structural failure of the resonator, the electric circuit element is broken to cause a discontinuity in the electric circuit element. Interrogation of the discontinuous electric circuit element facilitates approximation of impact frequency and/or impact energy.
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