JP6937846B2 - レーザーサーモグラフィ - Google Patents
レーザーサーモグラフィ Download PDFInfo
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- JP6937846B2 JP6937846B2 JP2019561252A JP2019561252A JP6937846B2 JP 6937846 B2 JP6937846 B2 JP 6937846B2 JP 2019561252 A JP2019561252 A JP 2019561252A JP 2019561252 A JP2019561252 A JP 2019561252A JP 6937846 B2 JP6937846 B2 JP 6937846B2
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- turbine component
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- turbine
- laser source
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- 238000001931 thermography Methods 0.000 title description 14
- 230000001066 destructive effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 238000010998 test method Methods 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000009659 non-destructive testing Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012720 thermal barrier coating Substances 0.000 description 24
- 239000010410 layer Substances 0.000 description 11
- 238000007689 inspection Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000010953 base metal Substances 0.000 description 6
- 240000007320 Pinus strobus Species 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Images
Classifications
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0088—Radiation pyrometry, e.g. infrared or optical thermometry in turbines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/08—Optical arrangements
- G01J5/0896—Optical arrangements using a light source, e.g. for illuminating a surface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
- G01N2201/06113—Coherent sources; lasers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
12 圧縮機部
14 燃焼器部
16 タービン部
18 水平中心軸線
28 燃焼器
120 タービン部品
130 光パルス
140 ミラー
150 赤外線センサ
160 赤外線(IR)カメラ
170 コンピュータ
180 レーザー源
200 基材
210 接着コート
220 遮熱コーティング(TBC)
Claims (7)
- タービン部品(120)の状態を評価するための非破壊試験方法において、
前記タービン部品(120)を加熱するための光パルス(130)を生成するレーザー源(180)を準備するステップと、
加熱された前記タービン部品(120)の少なくとも1つの赤外線画像をキャプチャするステップと、
少なくとも1つの前記赤外線画像について前記タービン部品の特性を分析するステップと、
を備えており、
前記非破壊試験方法が、
第1の指定波長でレーザー源(180)を動作させるステップと、
第1のパルス持続時間の間、前記タービン部品(120)の表面の所望の領域に照射するように、前記レーザー源(180)を合焦するステップと、
前記タービン部品(120)の前記表面の前記所望の領域の第1の画像をキャプチャするステップと、
前記第1の指定波長での前記レーザー源(180)の動作を停止させるステップと、
第2の指定波長で前記レーザー源(180)を動作させるステップと、
第2のパルス持続時間の間、前記タービン部品(120)の表面下の所望の領域に照射するように、前記レーザー源(180)を合焦させるステップと、
前記タービン部品(120)の前記表面下の前記所望の領域の第2の画像をキャプチャするステップと、
を備えており、
前記第1の画像が、前記タービン部品(120)の前記表面の前記所望の領域に関する第1のデータセットを含んでおり、前記第2の画像が、前記タービン部品(120)の前記表面下の前記所望の領域に関する第2のデータセットを含んでおり、
前記第1の指定波長と前記第2の指定波長とが相違しており、
前記レーザー源(180)のパルス持続時間が、1ms〜30msの範囲内とされることを特徴とする非破壊試験方法。 - 前記第1の指定波長が、4マイクロメートル〜9マイクロメートルの範囲内とされることを特徴とする請求項1に記載の非破壊試験方法。
- 前記第2の指定波長が、9マイクロメートル〜11マイクロメートルの範囲内とされることを特徴とする請求項1に記載の非破壊試験方法。
- 前記分析が、損傷について前記表面を評価するために、前記第1のデータセットを既知の材料パラメータと比較することを含んでいることを特徴とする請求項1に記載の非破壊試験方法。
- 前記分析が、損傷について前記表面下(210、220)を評価するために、前記第2のデータセットを既知の材料パラメータと比較することを含んでいることを特徴とする請求項1に記載の非破壊試験方法。
- 前記非破壊試験方法が、
前記キャプチャが、前記タービン部品(120)から放射される熱エネルギを検出するための赤外線センサを含んでいる赤外線カメラ(160)によって実施され、
放射された前記熱エネルギが、赤外線画像を生成するために、前記赤外線センサ(150)に伝達されることを特徴とする請求項1に記載の非破壊試験方法。 - 前記タービン部品(120)の表面が、熱コーティング(220)を含んでおり、前記タービン部品(120)の表面下が、接着コーティング(210)及び/又は基材(200)を含んでいることを特徴とする請求項1に記載の非破壊試験方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/588,853 | 2017-05-08 | ||
US15/588,853 US10241036B2 (en) | 2017-05-08 | 2017-05-08 | Laser thermography |
PCT/US2018/025819 WO2018208387A1 (en) | 2017-05-08 | 2018-04-03 | Laser thermography |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020518827A JP2020518827A (ja) | 2020-06-25 |
JP6937846B2 true JP6937846B2 (ja) | 2021-09-22 |
Family
ID=62044990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019561252A Active JP6937846B2 (ja) | 2017-05-08 | 2018-04-03 | レーザーサーモグラフィ |
Country Status (7)
Country | Link |
---|---|
US (1) | US10241036B2 (ja) |
EP (1) | EP3622277A1 (ja) |
JP (1) | JP6937846B2 (ja) |
KR (1) | KR102355963B1 (ja) |
CN (1) | CN110603438B (ja) |
RU (1) | RU2738312C1 (ja) |
WO (1) | WO2018208387A1 (ja) |
Families Citing this family (6)
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US11474059B2 (en) * | 2020-04-29 | 2022-10-18 | Thermal Wave Imaging, Inc. | Thermographic non-destructive testing using temperature-limited modulation |
CN113567492A (zh) * | 2021-07-26 | 2021-10-29 | 北京航空航天大学 | 一种基于红外热耗散的涡轮叶片热障涂层无损检测方法和检测装置 |
CN113340941B (zh) * | 2021-08-04 | 2021-10-29 | 湖南大学 | 一种基于红外成像的设备检测系统 |
DE112022005451T5 (de) | 2021-11-15 | 2024-08-29 | Mitsubishi Heavy Industries, Ltd. | Komponenteninspektionsverfahren, komponentenherstellungsverfahren und komponenteninspektionsvorrichtung |
DE102022203006A1 (de) | 2022-03-28 | 2023-09-28 | Thyssenkrupp Ag | Vorrichtung und Verfahren zur Messung inhomogener Flächen mittels aktiver Laserthermographie |
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2017
- 2017-05-08 US US15/588,853 patent/US10241036B2/en active Active
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2018
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EP3622277A1 (en) | 2020-03-18 |
WO2018208387A1 (en) | 2018-11-15 |
KR102355963B1 (ko) | 2022-01-25 |
US10241036B2 (en) | 2019-03-26 |
CN110603438B (zh) | 2023-02-17 |
US20180321140A1 (en) | 2018-11-08 |
KR20200004365A (ko) | 2020-01-13 |
JP2020518827A (ja) | 2020-06-25 |
RU2738312C1 (ru) | 2020-12-11 |
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