CN110542723B - Guided wave signal sparse decomposition and damage positioning-based two-stage damage position identification method - Google Patents
Guided wave signal sparse decomposition and damage positioning-based two-stage damage position identification method Download PDFInfo
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- CN110542723B CN110542723B CN201910877753.3A CN201910877753A CN110542723B CN 110542723 B CN110542723 B CN 110542723B CN 201910877753 A CN201910877753 A CN 201910877753A CN 110542723 B CN110542723 B CN 110542723B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/449—Statistical methods not provided for in G01N29/4409, e.g. averaging, smoothing and interpolation
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112684001B (en) * | 2020-10-28 | 2024-03-01 | 国网浙江省电力有限公司温州供电公司 | Ultrasonic guided wave nondestructive testing device and damage identification method for power transmission wire |
CN115508449B (en) * | 2021-12-06 | 2024-07-02 | 重庆大学 | Defect positioning imaging method based on ultrasonic guided wave multi-frequency sparseness and application thereof |
CN116124902B (en) * | 2023-02-03 | 2023-08-18 | 哈尔滨工业大学 | Diagnostic method for ultrasonic guided wave damage positioning accuracy |
CN117076992B (en) * | 2023-10-16 | 2024-01-19 | 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) | Structural member damage detection method and system based on signal processing |
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