JPH0549934B2 - - Google Patents
Info
- Publication number
- JPH0549934B2 JPH0549934B2 JP1259184A JP25918489A JPH0549934B2 JP H0549934 B2 JPH0549934 B2 JP H0549934B2 JP 1259184 A JP1259184 A JP 1259184A JP 25918489 A JP25918489 A JP 25918489A JP H0549934 B2 JPH0549934 B2 JP H0549934B2
- Authority
- JP
- Japan
- Prior art keywords
- spectrum
- vibration
- measured
- defect
- peak
- 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 - Fee Related
Links
- 230000007547 defect Effects 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 21
- 238000001228 spectrum Methods 0.000 description 113
- 230000005284 excitation Effects 0.000 description 29
- 238000001845 vibrational spectrum Methods 0.000 description 24
- 230000000149 penetrating effect Effects 0.000 description 18
- 238000005259 measurement Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 230000002950 deficient Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010183 spectrum analysis Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259184A JPH03120459A (ja) | 1989-10-04 | 1989-10-04 | 欠陥検出方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1259184A JPH03120459A (ja) | 1989-10-04 | 1989-10-04 | 欠陥検出方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03120459A JPH03120459A (ja) | 1991-05-22 |
| JPH0549934B2 true JPH0549934B2 (enExample) | 1993-07-27 |
Family
ID=17330537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1259184A Granted JPH03120459A (ja) | 1989-10-04 | 1989-10-04 | 欠陥検出方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120459A (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4511695B2 (ja) * | 2000-07-25 | 2010-07-28 | 三井造船株式会社 | 探傷方法および装置 |
| JP7813017B2 (ja) * | 2020-04-30 | 2026-02-12 | 株式会社日本環境土木研究所 | 構造体診断装置、構造体診断方法、プログラム及び記録媒体 |
-
1989
- 1989-10-04 JP JP1259184A patent/JPH03120459A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03120459A (ja) | 1991-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |