JPS5513845A - Ultrasonic inspecting method - Google Patents
Ultrasonic inspecting methodInfo
- Publication number
- JPS5513845A JPS5513845A JP8604278A JP8604278A JPS5513845A JP S5513845 A JPS5513845 A JP S5513845A JP 8604278 A JP8604278 A JP 8604278A JP 8604278 A JP8604278 A JP 8604278A JP S5513845 A JPS5513845 A JP S5513845A
- Authority
- JP
- Japan
- Prior art keywords
- defect
- reflected
- size
- wave
- probe
- 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.)
- Pending
Links
Abstract
PURPOSE: To know the size of a defect in a specific shape accurately under no influence of the directivity of a wave reflected by the defect, by finding the size of the defect by observing a bottom echo when using a bevel probe.
CONSTITUTION: Ultrasonic pulses emitted by bevel probe 4 are reflected by bottom 2 of a probed material and then detected by bevel probe 5. If there is defect 6 on the passage of this ultrasonic pulse, reflected waves are generated and some of them in the opposite direction of the incident wave propagate as shown by arrows (p) and (q) and are detected by probe 4, so that waveform 7 of the defect echo pulses will be observed. Further, waveform 9 of the bottom echo pulse is observed at a position when constant time T0 elapses since the transmission ultrasonic wave is radiated 8. Then, area S of defect 6 is obtained from difference Q between the amplitude of the bottom echo pulse in case of the occurrence of this defect 6 and that in case of no defect. Consequently, no influence of the directivity of the reflected wave due to the defect is exerted, so that the relatively-accurate measurement of the size of the defect can be realized.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604278A JPS5513845A (en) | 1978-07-17 | 1978-07-17 | Ultrasonic inspecting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8604278A JPS5513845A (en) | 1978-07-17 | 1978-07-17 | Ultrasonic inspecting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5513845A true JPS5513845A (en) | 1980-01-31 |
Family
ID=13875612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8604278A Pending JPS5513845A (en) | 1978-07-17 | 1978-07-17 | Ultrasonic inspecting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5513845A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009270824A (en) * | 2008-04-30 | 2009-11-19 | Kawasaki Heavy Ind Ltd | Ultrasonic flaw detecting method and ultrasonic flaw detector |
-
1978
- 1978-07-17 JP JP8604278A patent/JPS5513845A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009270824A (en) * | 2008-04-30 | 2009-11-19 | Kawasaki Heavy Ind Ltd | Ultrasonic flaw detecting method and ultrasonic flaw detector |
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