JPS5572856A - Defect evaluating method by ultrasonic wave - Google Patents
Defect evaluating method by ultrasonic waveInfo
- Publication number
- JPS5572856A JPS5572856A JP14656478A JP14656478A JPS5572856A JP S5572856 A JPS5572856 A JP S5572856A JP 14656478 A JP14656478 A JP 14656478A JP 14656478 A JP14656478 A JP 14656478A JP S5572856 A JPS5572856 A JP S5572856A
- Authority
- JP
- Japan
- Prior art keywords
- angle
- ultrasonic wave
- wave beam
- scan
- defect
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To make it possible to evaluate defective depth by using an ultrasonic wave beam such as a focusing beam, by determining a defective size on the basis of the angle, etc., of a fan-shaped scan of the ultrasonic wave beam.
CONSTITUTION: Variable-angle ultrasonic probe 1 is formed of concave-surface vibrator 4 incorporated with circumferential element 3 reciprocating in contact with fixed shoe 2 and probe 1 takes a fan-shaped scan of an ultrasonic wave beam to inspect the defect of tested body 6. According to refraction angle (θr1) corresponding to the scan angle of probe 1 at the point in time when a vertical cracking defect of tested body 6 is detected and refraction-angle variation (Δθ) corresponding the increment of the scan angle until the defect disappears, arithmetic based upon formula I is carried out to determine cracking depth (d). Here, T is the thickness of the tested body and W is the width of the ultrasonic wave beam. Consequently, the cracking depth can easily be measured by using a fine ultrasonic wave beam through the measurement of angle of a fun-shaped scan beam corresponding to variation in refraction angle without movement-distance measurement.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14656478A JPS5572856A (en) | 1978-11-29 | 1978-11-29 | Defect evaluating method by ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14656478A JPS5572856A (en) | 1978-11-29 | 1978-11-29 | Defect evaluating method by ultrasonic wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5572856A true JPS5572856A (en) | 1980-06-02 |
Family
ID=15410520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14656478A Pending JPS5572856A (en) | 1978-11-29 | 1978-11-29 | Defect evaluating method by ultrasonic wave |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5572856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61251768A (en) * | 1985-05-01 | 1986-11-08 | Hitachi Constr Mach Co Ltd | Measuring method for size of defect in surface layer of solid body by ultrasonic wave |
-
1978
- 1978-11-29 JP JP14656478A patent/JPS5572856A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61251768A (en) * | 1985-05-01 | 1986-11-08 | Hitachi Constr Mach Co Ltd | Measuring method for size of defect in surface layer of solid body by ultrasonic wave |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5572856A (en) | Defect evaluating method by ultrasonic wave | |
| JPS54150188A (en) | Cracking inspecting apparatus by ultrasonic waves | |
| JPS5642136A (en) | Ultrasonic flaw detecting method | |
| JPS6431048A (en) | Method for measuring surface opening crack depth of concrete by ultrasonic wave | |
| JPS6438620A (en) | Measuring method of contact stress of pin by ultrasonic wave | |
| SU697916A1 (en) | Method of obtaining acoustic contact at ultrasonic measurements | |
| SU962750A1 (en) | Method of measuring depth of corrosion or other destruction of surface at specimen testing | |
| SU1260842A1 (en) | Method of determining physical and mechanical properties of objects by means of buffer rod converter | |
| RU93012951A (en) | METHOD OF OPTICAL TOMOGRAPHY OF TRANSPARENT MATERIALS | |
| JPS5480183A (en) | Measurement reference tool for ultrasonic flaw detection | |
| Malinka | Measurement of the size and shape of flaws by the method of ultrasonic spectrum. I. II | |
| SU476501A1 (en) | Ultrasonic method for measuring defect sizes | |
| Crostack | Investigations to Improve the Flaw Detection Sensitivity and the Evaluation of Corrosion Cracks by Ultrasonic Testing | |
| DOSHI et al. | Nonimmersion pulse-echo acousto-optical imaging nondestructive testing system(Nondestructive test equipment using acousto-optical imaging techniques)[Final Report, 30 Jun. 1970- 30 Mar. 1973] | |
| SU993018A1 (en) | Ultrasonic method of checking surface roughness | |
| SU1397822A1 (en) | Method of measuring acoustic resistance of materials | |
| SU679798A1 (en) | Method of measuring sea surface sloping | |
| SU529412A1 (en) | Method for ultrasonic inspection of products | |
| JPS57111444A (en) | Ultrasonic flaw detecting method based on observation of waveform | |
| JPS5385488A (en) | Ultrasonic flaw detecting method | |
| DORY | Application of frequency analysis to ultrasonic nondestructive testing | |
| JPS56128455A (en) | Ultrasonic flaw detecting method | |
| Crostack | Investigations to Improving the Detection Sensitivity and Evaluation of Corrosion Cracks With Ultrasound Testing.(Retroactive Coverage) | |
| JPS5460963A (en) | Measuring method of wafer warpage | |
| JPS62273449A (en) | Ultrasonic measurement |