JP6931528B2 - 複合材検査 - Google Patents
複合材検査 Download PDFInfo
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- JP6931528B2 JP6931528B2 JP2016239121A JP2016239121A JP6931528B2 JP 6931528 B2 JP6931528 B2 JP 6931528B2 JP 2016239121 A JP2016239121 A JP 2016239121A JP 2016239121 A JP2016239121 A JP 2016239121A JP 6931528 B2 JP6931528 B2 JP 6931528B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
- G01L1/255—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons using acoustic waves, or acoustic emission
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/043—Analysing solids in the interior, e.g. by shear waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
- G01N29/0609—Display arrangements, e.g. colour displays
- G01N29/0645—Display representation or displayed parameters, e.g. A-, B- or C-Scan
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
- G01N2021/1706—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/015—Attenuation, scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0231—Composite or layered materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2694—Wings or other aircraft parts
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Probability & Statistics with Applications (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Toxicology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
を使用して、次の方程式に従って決定される。
(1)
R(0)は時刻ゼロにおける複素自己相関関数(complex autocorrelation function)
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相である。関数の上に付いているドットは、当該関数の時間微分を表わす。
(2)
ここで、pは係数の大きさであり、SnはサンプルポイントnでのA−スキャン信号である。
(3)
例示的な一実施例では、パラメータは以下を含みうる。
f0=100kHz、f1=11MHz、及びf2/f1=1.2
幾つかの例示的な実施例では、f1は11MHzではなく、5MHzとなる。
を使用して、超音波A−スキャンの窓処理された信号の平均周波数を決定することを含む。
(4)
ここで、R(0)は時刻ゼロにおける複素自己相関関数
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相である。関数の上に付いているドットは、当該関数の時間微分を表わす。
を使用して、次の方程式に従って決定される。
(5)
ここで、R(0)は時刻ゼロにおける複素自己相関関数
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相で、関数の上に付いているドットは、当該関数の時間微分を表わす。
を使用して、次の方程式に従って決定される。
(6)
ここで、R(0)は時刻ゼロにおける複素自己相関関数
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相で、関数の上に付いているドットは、当該関数の時間微分を表わす。
を使用し、方程式
(ここでR(0)は時刻ゼロにおける複素自己相関関数
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相で、関数の上に付いているドットは、当該関数の時間微分を表わす)に従って、前記超音波A−スキャン(258、303)の窓処理された信号(316)の平均周波数(318)を決定することを含む、条項1から7のいずれか一項に記載の方法。
を使用し、方程式
(ここでR(0)は時刻ゼロにおける複素自己相関関数
の大きさで、O(0)は時刻ゼロにおける複素自己相関関数の位相で、関数の上に付いているドットは、当該関数の時間微分を表わす)に従って決定される、条項15に記載の方法。
Claims (8)
- 複合材料構造物(202)の局所的な材料の変化(246)を検出する方法であって、前記方法は、
パルスレーザービーム(220)を幾つかの複合材料(203)からなる前記複合材料構造物(202)の方に向けることであって、前記パルスレーザービーム(220)の放射が前記複合材料構造物(202)によって吸収されるときに、広帯域超音波信号(226)が前記複合材料構造物(202)内に形成される、パルスレーザービーム(220)を向けること、
前記広帯域超音波信号(226)を検出して、前記複合材料構造物(202)の幾つかの超音波A−スキャン(258、303)を含むデータ(240)を形成すること、
前記複合材料構造物(202)の局所周波数値(272、324)を特定するため、前記データ(240)を処理すること、及び
前記局所周波数値(272、324)を使用して、前記幾つかの複合材料(203)に局所的な材料の変化(246)があるか否かを判定すること
を含み、前記局所周波数値(272、324)を特定するため、前記データ(240)を処理することが、
窓処理された信号(316)を形成するために、前記幾つかの超音波A−スキャン(258,303)の各々に時間領域(266)の移動窓(312)を適用すること、
超音波A−スキャン(258、303)の窓処理された信号(316)の複素解析表現である複素自己相関関数
を使用し、方程式
(ここでR(0)は時刻ゼロにおける複素自己相関関数
の大きさで、
は時刻ゼロにおける複素自己相関関数の位相で、関数の上に付いているドットは、当該関数の時間微分を表わす)
に従って、前記超音波A−スキャン(258、303)の窓処理された信号(316)の平均周波数(318)を決定すること、及び
前記局所周波数値(272、324)を形成するために、前記窓処理された信号(316)の前記移動窓(312)ごとの複数の測定値から前記平均周波数(318)を平均化すること、を含む、方法。 - 前記幾つかの複合材料(203)に前記局所的な材料の変化(246)があるか否かを判定することは、前記局所周波数値(272、324)を複合材料構造物標準(276)の周波数値(274、328)と比較することを含む、請求項1に記載の方法。
- 前記局所周波数値(272、324)が前記複合材料構造物標準(276)の前記周波数値(274、328)と異なる場合には、前記局所的な材料の変化(246)はあると判定される、請求項2に記載の方法。
- 前記複合材料構造物標準(276)の前記周波数値(274、328)は、前記複合材料構造物(202)の許容しうる品質を表わす、請求項2又は3に記載の方法。
- B−スキャン(260)を表示することをさらに含み、前記B−スキャン(260)に表示された情報は、各移動窓(312)に対する前記平均周波数(318)である、請求項1から4のいずれか一項に記載の方法。
- 前記移動窓(312)はガウス分布形状を有する、請求項1から5のいずれか一項に記載の方法。
- 前記局所周波数値(272、324)は、前記局所的な材料の変化(246)が判定されることになっている、ある容積の材料に対して決定された平均周波数(318)の局所値の平均である、請求項1から6のいずれか一項に記載の方法。
- 前記広帯域超音波信号(226)は、点状の光学式超音波検出器(230)を使用して検出される、請求項1から7のいずれか一項に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562270554P | 2015-12-21 | 2015-12-21 | |
US62/270,554 | 2015-12-21 | ||
US15/070,583 | 2016-03-15 | ||
US15/070,583 US10571390B2 (en) | 2015-12-21 | 2016-03-15 | Composite inspection |
Publications (3)
Publication Number | Publication Date |
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JP2017161499A JP2017161499A (ja) | 2017-09-14 |
JP2017161499A5 JP2017161499A5 (ja) | 2020-01-23 |
JP6931528B2 true JP6931528B2 (ja) | 2021-09-08 |
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Application Number | Title | Priority Date | Filing Date |
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JP2016239121A Active JP6931528B2 (ja) | 2015-12-21 | 2016-12-09 | 複合材検査 |
Country Status (7)
Country | Link |
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US (1) | US10571390B2 (ja) |
EP (1) | EP3185009B1 (ja) |
JP (1) | JP6931528B2 (ja) |
CN (1) | CN106895932B (ja) |
AU (1) | AU2016244198B2 (ja) |
BR (1) | BR102016029296B1 (ja) |
SG (1) | SG10201608593PA (ja) |
Families Citing this family (8)
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US11073500B2 (en) | 2018-11-07 | 2021-07-27 | The Boeing Company | Systems and methods for automatic alignment and focusing of light in laser ultrasound testing |
CN109725060A (zh) * | 2019-01-31 | 2019-05-07 | 中国民用航空飞行学院 | 一种基于焦耳热固化的超声波实时监测系统及监测方法 |
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US11639914B2 (en) | 2020-12-16 | 2023-05-02 | The Boeing Company | Non-destructive test systems with infrared thermography assemblies and ultrasonic test assemblies, and associated methods |
US12019050B2 (en) | 2021-04-07 | 2024-06-25 | The Boeing Company | Ultrasound inspection system and method |
KR102390004B1 (ko) * | 2021-09-16 | 2022-04-25 | 라이트브라더스 주식회사 | 스케일 변화량 분석 기반의 자전거 비파괴 검사 장치, 방법, 및 컴퓨터 판독 가능한 기록 매체 |
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CN106895932B (zh) | 2021-04-27 |
US10571390B2 (en) | 2020-02-25 |
EP3185009B1 (en) | 2018-12-12 |
CN106895932A (zh) | 2017-06-27 |
JP2017161499A (ja) | 2017-09-14 |
BR102016029296A2 (pt) | 2017-06-27 |
US20170176322A1 (en) | 2017-06-22 |
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AU2016244198A1 (en) | 2017-07-06 |
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