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US 9,038,469 B2Granted
Reference free inconsistency detection system
AssigneeThe Boeing Company
InventorsHoon Sohn, Hyung Jin Lim, Chul Min Yeum, Jeong-Beom Ihn
Life of this patent
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Abstract
A method and apparatus for identifying an inconsistency. A number of waves that propagate through a structure are generated. A response signal is generated in response to detecting at least a portion of the number of waves that propagate through the structure. A determination is made as to whether the response signal includes a reflected component. A presence of the inconsistency in the structure is indicated when the response signal includes the reflected component.
Claims19
A method for identifying an inconsistency, the method comprising:
- generating a number of waves that propagate through a structure;
- generating a response signal in response to detecting at least a portion of the number of waves that propagate through the structure;
- determining whether the response signal includes a reflected component;
- indicating a presence of the inconsistency in the structure when the response signal includes the reflected component;
- and
- identifying information about the inconsistency by identifying an m value, wherein the m value is half of a product of a central frequency for the number of waves and a difference in arrival time of a transmitted portion and a reflected portion of the at least a portion of the number of waves detected.
3 more elements
An apparatus comprising:
- a transducer system configured to be associated with a structure and configured to generate a number of waves that propagate through the structure and generate a response signal in response to detecting at least a portion of the number of waves that propagate through the structure;
- and
- an analyzer configured to:
- control the transducer system to receive the response signal from the transducer system;
- determine whether the response signal includes a reflected component;
- indicate a presence of an inconsistency in the structure when the response signal includes the reflected component;
- and
- identify information about the inconsistency by identifying an m value, wherein the m value is half of a product of a central frequency for the number of waves and a difference in arrival time of a transmitted portion and a reflected portion of the at least a portion of the number of waves detected.
5 more elements
Dependencies are inferred from the claim text.