Non-powered impact recorder
First Claim
1. A non-powered impact recorder, comprising:
- a plurality of resonators, each resonator tuned for a resonant response within a predetermined frequency range,a reduced cross-sectional area portion formed within each of the plurality of resonators, each resonator configured to structurally fail when the resonator experiences the resonant response at a predetermined amplitude, wherein at least two of the plurality of resonators are tuned for a resonant response within the same predetermined frequency range, the reduced cross-sectional area portions of each of the at least two resonators being configured to structurally fail at different amplitudes; and
an electric circuit element disposed about the reduced cross-sectional area portion of each resonator,wherein upon structural failure of the resonator, the electric circuit element is broken to cause a discontinuity in the electric circuit element, andwherein interrogation of the discontinuous electric circuit element facilitates approximation of at least one of an impact frequency and an impact energy.
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Accused Products
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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Citations
25 Claims
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1. A non-powered impact recorder, comprising:
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a plurality of resonators, each resonator tuned for a resonant response within a predetermined frequency range, a reduced cross-sectional area portion formed within each of the plurality of resonators, each resonator configured to structurally fail when the resonator experiences the resonant response at a predetermined amplitude, wherein at least two of the plurality of resonators are tuned for a resonant response within the same predetermined frequency range, the reduced cross-sectional area portions of each of the at least two resonators being configured to structurally fail at different amplitudes; and an electric circuit element disposed about the reduced cross-sectional area portion of each resonator, wherein upon structural failure of the resonator, the electric circuit element is broken to cause a discontinuity in the electric circuit element, and wherein interrogation of the discontinuous electric circuit element facilitates approximation of at least one of an impact frequency and an impact energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An impact recorder and retrieval system, comprising:
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an interrogator; and a non-powered impact recorder having a plurality of resonators, each resonator tuned for a resonant response within a predetermined frequency range, a reduced cross-sectional area portion formed within each resonator, configured to structurally fail when the respective resonator experiences the resonant response at a predetermined magnitude, wherein at least two of the plurality of resonators are tuned for a resonant response within the same predetermined frequency range, the reduced cross-sectional area portions of each of the at least two resonators being configured to structurally fail at different amplitudes, and an electric circuit element disposed about the reduced cross-sectional area portion of each resonator, wherein upon structural failure of the resonator, the electric circuit element is broken to cause a discontinuity in the electric circuit element, and wherein interrogation of the discontinuous electric circuit element by the interrogator facilitates approximation of at least one of an impact frequency and an impact energy. - View Dependent Claims (17, 18, 19, 25)
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20. A method for facilitating non-powered recording of an impact event, comprising:
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providing a plurality of resonators, each resonator tuned for a resonant response within a predetermined frequency range; facilitating structural failure of each resonator when the resonator experiences the resonant response, wherein at least two of the plurality of resonators are tuned for a resonant response within the same predetermined frequency range and are configured to structurally fail at different magnitudes; facilitating a discontinuity in an electric circuit element due to the structural failure of the resonator; and facilitating interrogation of the electric circuit element to approximate at least one of an impact frequency and an impact energy. - View Dependent Claims (21, 22, 23, 24)
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Specification