JPS55149835A - Ultrasonic flaw detecting method and apparatus - Google Patents
Ultrasonic flaw detecting method and apparatusInfo
- Publication number
- JPS55149835A JPS55149835A JP5703579A JP5703579A JPS55149835A JP S55149835 A JPS55149835 A JP S55149835A JP 5703579 A JP5703579 A JP 5703579A JP 5703579 A JP5703579 A JP 5703579A JP S55149835 A JPS55149835 A JP S55149835A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- ultrasonic
- image
- detecting
- echo
- 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.)
- Granted
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To attain real time display of an image the brightness of which is not varied with the scanning speed of a detecting contactor, by memorizing reflected waves at a high rate, and carrying out rewriting in a digital image memory in accordance with the locus of ultrasonic wave at the subsequent ultrasonic wave transmitting time.
CONSTITUTION: A detecting probe 1 is adapted to transmit ultrasonic waves to the inside of a sample 5 in accordance with a transmitting pulse 101a from an ultrasonic flaw detector 3. A reflected wave from the sample 5 is converted into an electric signal by the detecting contactor 1, and a conversion signal 101b is displayed on a flaw detector 3 and output at the same time as an ultrasonic echo signal 102 into an image processor 4. The echo signal 102 is memorized by a buffer memory 7 in the image processor 4. A microcomputer 11 is adapted to apply a control signal to a deflection circuit 8 through a data transfer control circuit 10, and generate an address signal equivalent to the progress of propagation of echo, signal thereof is memorized again in a digital image memory 9. Thus, variations in the brightness of an image to occur with the scanning speed of the detecting probe can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5703579A JPS55149835A (en) | 1979-05-11 | 1979-05-11 | Ultrasonic flaw detecting method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5703579A JPS55149835A (en) | 1979-05-11 | 1979-05-11 | Ultrasonic flaw detecting method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55149835A true JPS55149835A (en) | 1980-11-21 |
| JPS6234101B2 JPS6234101B2 (en) | 1987-07-24 |
Family
ID=13044180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5703579A Granted JPS55149835A (en) | 1979-05-11 | 1979-05-11 | Ultrasonic flaw detecting method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55149835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57141549A (en) * | 1981-02-25 | 1982-09-01 | Tokyo Keiki Co Ltd | Ultrasonic flaw detector |
| JPS58129248A (en) * | 1982-01-27 | 1983-08-02 | Hitachi Ltd | Image display for ultrasonic flaw detection |
| JPS58139062A (en) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | Image display for ultrasonic flaw detection |
-
1979
- 1979-05-11 JP JP5703579A patent/JPS55149835A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57141549A (en) * | 1981-02-25 | 1982-09-01 | Tokyo Keiki Co Ltd | Ultrasonic flaw detector |
| JPS58129248A (en) * | 1982-01-27 | 1983-08-02 | Hitachi Ltd | Image display for ultrasonic flaw detection |
| JPS58139062A (en) * | 1982-02-15 | 1983-08-18 | Hitachi Ltd | Image display for ultrasonic flaw detection |
| JPH0245821B2 (en) * | 1982-02-15 | 1990-10-11 | Hitachi Seisakusho Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6234101B2 (en) | 1987-07-24 |
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