Digital wound detection system
First Claim
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1. A method for detecting and characterizing a ballistic impact event comprising:
- providing an impact recorder having a self-powered shock sensor powered by a signal from a resonant response to a ballistic impact event, the signal being proportional to a magnitude of the ballistic impact event, the self-powered shock sensor comprising an array of resonators, each resonator in the array being tuned for resonant response within a different frequency range, each of said different frequency ranges being within a frequency range corresponding to that generated by the ballistic impact event, the impact recorder further configured to transport the signal to a memory device and capture a value of the resonant response;
retrieving the captured resonant response value; and
utilizing the resonant response value to detect and characterize the ballistic impact event.
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Abstract
Methods and devices for a miniature, ultra-low power impact recorder for detecting, quantifying and recording the energy of an explosive blast or ballistic projectile impact. In one embodiment, the impact recorder can included a sensor comprised of an array of electromechanical resonators that is sensitive to the vibrations produced in selected, discrete frequency ranges that approximate the spectral signature characteristics of the shockwave resulting from the ballistic impact event, even after traveling through impacted material or body tissues.
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Citations
21 Claims
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1. A method for detecting and characterizing a ballistic impact event comprising:
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providing an impact recorder having a self-powered shock sensor powered by a signal from a resonant response to a ballistic impact event, the signal being proportional to a magnitude of the ballistic impact event, the self-powered shock sensor comprising an array of resonators, each resonator in the array being tuned for resonant response within a different frequency range, each of said different frequency ranges being within a frequency range corresponding to that generated by the ballistic impact event, the impact recorder further configured to transport the signal to a memory device and capture a value of the resonant response; retrieving the captured resonant response value; and utilizing the resonant response value to detect and characterize the ballistic impact event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An impact recorder for measuring the severity of a ballistic impact experienced by a combat soldier comprising:
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a self-powered shock sensor powered by a signal from a resonant response to a ballistic impact event, the signal being proportional to a magnitude of the ballistic impact event, the self-powered shock sensor comprising; a plurality of resonators, each resonator being tuned for resonant response within a different frequency range, each of said different frequency ranges being within a frequency range corresponding to that generated by the ballistic impact event; an electronic circuit configured to carry the signal away from the shock sensor; and a memory device configured to capture a maximum value of the signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A recorder for measuring an impact event comprising:
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a self-powered shock sensor powered by signals from resonant responses to a ballistic impact event, the signals being proportional to a magnitude of the ballistic impact event within a frequency range of vibrations generated by the impact event, the self-powered shock sensor comprising; an array of piezoelectric cantilever beams, each beam being tuned for resonant response within a different frequency range, each of said different frequency ranges being within a frequency range corresponding to that generated by the ballistic impact event; an electronic circuit configured to carry the signals away from the shock sensor; and a memory device configured to capture responses associated with the different frequency ranges conveyed by the signals to detect and characterize the impact event.
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21. A method for measuring an impact event comprising:
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providing an impact recorder having a self-powered shock sensor powered by signals from resonant responses to a ballistic impact event, the signals being proportional to a magnitude of the ballistic impact event within a frequency range of vibrations generated by the impact event, the self-powered shock sensor comprising an array of resonators, each resonator being tuned for resonant response within a different frequency range, each of said different frequency ranges being within a frequency range corresponding to that generated by the ballistic impact event; transporting the signals to respective inputs of one or more memory devices; and processing the signals to obtain information relating to the responses associated with the different frequency ranges conveyed by the signals.
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Specification