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US 12,754,097 B2Granted
Structural inspection using multi-tone steady state excitation
AssigneesChevron U.S.A. Inc., Triad National Security, LLC
InventorsAlison Hayley Root, Eric Brian Flynn, Adam Joseph Wachtor, Robert Kwan Meng Seah, Ian Thomas Cummings, Rodney F. Deschamps, Erica Marie Jacobson
Life of this patent
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Abstract
Different frequencies for steady state excitation of the structure may be tested by sweeping over an excitation frequency range. Partial measurements of the responses in the structure at different excitation frequencies may be used to select excitation frequencies, and the selected excitation frequencies may be used to inspect the structure.
Claims19
A method for inspecting a structure, the method comprising:
- generating preliminary acoustic excitations in the structure using multiple excitation frequencies, wherein the preliminary acoustic excitations in the structure include preliminary steady state acoustic excitations in the structure;
- obtaining measurements of the preliminary acoustic excitations in the structure;
- selecting a subset of the multiple excitation frequencies to be used to inspect the structure based on the measurements of the preliminary acoustic excitations in the structure;
- generating inspection acoustic excitations in the structure using the subset of the multiple excitation frequencies, wherein the inspection acoustic excitations in the structure include inspection steady state acoustic excitations in the structure;
- obtaining measurements of the inspection acoustic excitations in the structure;
- and
- determining one or more properties of the structure based on the measurements of the inspection acoustic excitations in the structure.
4 more elements
A system for inspecting a structure, the system comprising:
- an acoustic excitation device configured to generate acoustic excitations in a structure;
- an acoustic measurement device configured to measure the acoustic excitations in the structure generated by the acoustic excitation device;
- one or more physical processors configured by machine-readable instructions to:
- obtain measurements taken by the acoustic measurement device of preliminary acoustic excitations in the structure, the preliminary acoustic excitations in the structure generated by the acoustic excitation device using multiple excitation frequencies, wherein the preliminary acoustic excitations in the structure include preliminary steady state acoustic excitations in the structure;
- select a subset of the multiple excitation frequencies to be used to inspect the structure based on the measurements of the preliminary acoustic excitations in the structure, wherein inspection acoustic excitations in the structure are generated using the subset of the multiple excitation frequencies;
- obtain measurements taken by the acoustic measurement device of the inspection acoustic excitations generated in the structure by the acoustic excitation device, wherein the inspection acoustic excitations in the structure include inspection steady state acoustic excitations in the structure;
- and
- determine one or more properties of the structure based on the measurements of the inspection acoustic excitations in the structure.
5 more elements
Dependencies are inferred from the claim text.