JP4437656B2 - 超音波探傷装置 - Google Patents
超音波探傷装置 Download PDFInfo
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- JP4437656B2 JP4437656B2 JP2003344435A JP2003344435A JP4437656B2 JP 4437656 B2 JP4437656 B2 JP 4437656B2 JP 2003344435 A JP2003344435 A JP 2003344435A JP 2003344435 A JP2003344435 A JP 2003344435A JP 4437656 B2 JP4437656 B2 JP 4437656B2
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- 230000007547 defect Effects 0.000 claims description 135
- 238000012545 processing Methods 0.000 claims description 96
- 239000000523 sample Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 46
- 238000007689 inspection Methods 0.000 claims description 44
- 238000004458 analytical method Methods 0.000 claims description 29
- 238000002592 echocardiography Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000001902 propagating effect Effects 0.000 claims description 8
- 238000012937 correction Methods 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 44
- 238000010586 diagram Methods 0.000 description 18
- 238000005259 measurement Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 14
- 238000000605 extraction Methods 0.000 description 10
- 230000002950 deficient Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 2
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- 238000003672 processing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- G01N29/0654—Imaging
- G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
-
- 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
-
- 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
- G01N2291/0232—Glass, ceramics, concrete or stone
-
- 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
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
2…被検査体
3…溶接継手部
4…送信探触子
5…受信探触子
6…配線
7…計測装置
8…超音波送受信器
9…A/D変換器
10…記録装置
11…信号処理装置
12…表示装置
13…底面反射波除去装置
14…超音波信号補正装置
15…合成開口装置
16…ラテラル波除去装置
17…ウェーブレット処理装置
18…S/N強調処理装置
19…欠陥抽出処理装置
20…交軸点
21…欠陥信号
22…欠陥信号
51,52,53…欠陥
61,62,63…欠陥画像
64…ラテラル波
65…底面反射波
u…超音波
ru…回折波
Claims (1)
- 被検査体の検査部両側に送信探触子と受信探触子とを対称配置し、該送信探触子から被検査体内に超音波を送信して被検査体内からの超音波エコーを受信探触子で受信して検査部をTOFD法によって走査する計測装置を設け、該計測装置に、前記被検査体内に欠陥が存在した場合の欠陥信号と類似するウエーブレット関数を用いてウェーブレット解析を行い、該ウェーブレット解析した結果から前記欠陥信号を取り出すのに適したウェーブレット解析次数を使用して前記受信探触子で受信した超音波エコーを再構成させて欠陥信号を強調するウェーブレット処理装置を具備させた超音波探傷装置に、
前記被検査体に応じて探触子の配置から幾何学計算で得られる底面反射波が現れる位置近傍で、予め設定した底面反射波の閾値を超える超音波エコーを検出し、該超音波エコーの立ち上がり位置よりも時間的に遅れて現れる超音波エコーの強度をゼロとすることにより底面反射波を除去する底面反射波除去装置と、
前記被検査体内を伝搬する超音波の減衰及び指向性によって低下する超音波強度の変化に従って、該被検査体の深さ方向における各伝播時間で同じ強度となるように、計測した超音波エコーを増幅させて微弱な信号を強調するようにした超音波信号補正装置と、
走査方向の超音波の広がりによって生じる曲線状の信号が現れる位置を、前記送信探触子と受信探触子の配置と走査位置から、予め被検査体の深さごとに対応した曲線式として求め、該曲線式を用いて合成開口処理を行うことにより探触子の走査方向に検出される曲線状の欠陥信号を頂点に集中させて増幅する合成開口装置と、
送信探触子と受信探触子との走査方向の各位置で得られた超音波信号の平均値を求め、前記各位置で得られた超音波信号から該平均値を減算することによってラテラル波を除去して欠陥信号を強調させるラテラル波除去装置とを具備させ、
前記底面反射波除去装置と超音波信号補正装置と合成開口装置とラテラル波除去装置のいずれか単独又は複数の組み合わせで欠陥信号を強調し、該強調した欠陥信号を前記ウェーブレット処理装置で強調する機能を前記計測装置に具備させた超音波探傷装置。
Priority Applications (1)
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---|---|---|---|
JP2003344435A JP4437656B2 (ja) | 2003-10-02 | 2003-10-02 | 超音波探傷装置 |
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JP2003344435A JP4437656B2 (ja) | 2003-10-02 | 2003-10-02 | 超音波探傷装置 |
Publications (3)
Publication Number | Publication Date |
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JP2005106782A JP2005106782A (ja) | 2005-04-21 |
JP2005106782A5 JP2005106782A5 (ja) | 2006-10-19 |
JP4437656B2 true JP4437656B2 (ja) | 2010-03-24 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108802202A (zh) * | 2018-05-29 | 2018-11-13 | 共享铸钢有限公司 | 一种超声波串列探头装置及方法 |
US10877002B2 (en) | 2016-02-10 | 2020-12-29 | Ihi Corporation | Ultrasonic flaw detection device and ultrasonic flaw detection method |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5091461B2 (ja) * | 2006-11-10 | 2012-12-05 | 三菱重工業株式会社 | 超音波探傷装置及びその方法並びにプログラム |
US7748259B2 (en) * | 2006-12-15 | 2010-07-06 | General Electric Company | Systems and methods for solid oxide fuel cell surface analysis |
JP2011203037A (ja) * | 2010-03-25 | 2011-10-13 | Toshiba Corp | 超音波探傷装置及び超音波探傷方法 |
JP5465588B2 (ja) * | 2010-04-16 | 2014-04-09 | 新日鐵住金株式会社 | 炭素質材の超音波検査方法及びその装置 |
CN101915805B (zh) * | 2010-07-12 | 2012-04-04 | 哈尔滨工业大学深圳研究生院 | 一种基于小波分析的夹芯板超声波检伤方法及应用 |
JP5742513B2 (ja) * | 2011-06-29 | 2015-07-01 | Jfeスチール株式会社 | 超音波探傷方法および超音波探傷装置 |
CN103901104B (zh) * | 2014-04-02 | 2017-02-15 | 深圳市泰克尼林科技发展有限公司 | 用于筒体对接环焊缝的tofd检测方法及tofd检测*** |
CN108680645B (zh) * | 2018-04-12 | 2020-11-24 | 石家庄铁道大学 | 轨道道岔板离缝病害识别方法及终端设备 |
WO2020250378A1 (ja) * | 2019-06-13 | 2020-12-17 | Jfeスチール株式会社 | 超音波探傷方法、超音波探傷装置、鋼材の製造設備列、鋼材の製造方法、及び鋼材の品質保証方法 |
CN112611801B (zh) * | 2020-11-03 | 2023-02-21 | 邯郸钢铁集团有限责任公司 | 一种在线检测钢轨组织方法 |
CN113724249B (zh) * | 2021-09-18 | 2023-06-16 | 西南交通大学 | 一种焊缝缺陷电涡流探伤数据的输出方法及*** |
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2003
- 2003-10-02 JP JP2003344435A patent/JP4437656B2/ja not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10877002B2 (en) | 2016-02-10 | 2020-12-29 | Ihi Corporation | Ultrasonic flaw detection device and ultrasonic flaw detection method |
CN108802202A (zh) * | 2018-05-29 | 2018-11-13 | 共享铸钢有限公司 | 一种超声波串列探头装置及方法 |
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JP2005106782A (ja) | 2005-04-21 |
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