JPH0123730B2 - - Google Patents
Info
- Publication number
- JPH0123730B2 JPH0123730B2 JP58117122A JP11712283A JPH0123730B2 JP H0123730 B2 JPH0123730 B2 JP H0123730B2 JP 58117122 A JP58117122 A JP 58117122A JP 11712283 A JP11712283 A JP 11712283A JP H0123730 B2 JPH0123730 B2 JP H0123730B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- flaw detection
- defect
- signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 31
- 230000007547 defect Effects 0.000 claims description 25
- 230000015654 memory Effects 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 5
- 239000000523 sample Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000002950 deficient Effects 0.000 description 3
- 238000002592 echocardiography Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000002344 surface layer Substances 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
- G01N29/4409—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison
- G01N29/4427—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by comparison with stored values, e.g. threshold values
-
- 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
- G01N29/0618—Display arrangements, e.g. colour displays synchronised with scanning, e.g. in real-time
- G01N29/0627—Cathode-ray tube displays
-
- 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
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- 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
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/38—Detecting the response signal, e.g. electronic circuits specially adapted therefor by time filtering, e.g. using time gates
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58117122A JPS6010167A (ja) | 1983-06-30 | 1983-06-30 | 超音波探傷信号処理装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58117122A JPS6010167A (ja) | 1983-06-30 | 1983-06-30 | 超音波探傷信号処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6010167A JPS6010167A (ja) | 1985-01-19 |
| JPH0123730B2 true JPH0123730B2 (en, 2012) | 1989-05-08 |
Family
ID=14703973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58117122A Granted JPS6010167A (ja) | 1983-06-30 | 1983-06-30 | 超音波探傷信号処理装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6010167A (en, 2012) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61181958A (ja) * | 1985-02-07 | 1986-08-14 | Tokyo Keiki Co Ltd | 探傷器用リジエクシヨン回路 |
| GB2222119B (en) * | 1988-07-29 | 1992-07-15 | Suzuki Motor Co | Suspension apparatus for vehicles |
| JPH02110365A (ja) * | 1988-10-20 | 1990-04-23 | Hitachi Constr Mach Co Ltd | 超音波探傷器のゲート回路 |
| JP2612322B2 (ja) * | 1988-10-27 | 1997-05-21 | 日立建機株式会社 | 超音波探傷器のゲート回路 |
| JP2755651B2 (ja) * | 1989-02-06 | 1998-05-20 | 東京電力株式会社 | 超音波探傷装置 |
-
1983
- 1983-06-30 JP JP58117122A patent/JPS6010167A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6010167A (ja) | 1985-01-19 |
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