JPS5667748A - Ultrasonic flaw detector - Google Patents
Ultrasonic flaw detectorInfo
- Publication number
- JPS5667748A JPS5667748A JP14385379A JP14385379A JPS5667748A JP S5667748 A JPS5667748 A JP S5667748A JP 14385379 A JP14385379 A JP 14385379A JP 14385379 A JP14385379 A JP 14385379A JP S5667748 A JPS5667748 A JP S5667748A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- inputted
- ultrasonic
- signal received
- 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 conditions optimum and improve flaw detection precision by digitalizing ultrasonic signal received with optional delay time to carry out an arithmetic addition processing.
CONSTITUTION: A/D conversion circuit 4 samples and digitalizes supersonic signal received which is inputted from a change-over switch circuit 3 with delay time preset based on trigger signal simultaneously inputted as a starting point. Then said digitalized signal received is conducted to an arithmetic addition circuit 5 to which output circuit for memory circuit 6 is connected. The circuit 5 adds a signal value newly inputted to the total sum of digitalized ultrasonic value which is already memorized by the circuit 6. This total value is inputted to the circuit 6 to be newly memorized. Later, the circuit 4 is cleared and concurrently the circuit 3 is also switched to the next step, the following ultrasonic generation starting point signal 11 is outputted to transmission timing signal generator 9 from signal control circuit 10 and the afore-mentioned action is repeated n times which are the same as the number of ultrasonic vibrators. Thus it is possible to make conditions optimum and improve flaw detection precision.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14385379A JPS5667748A (en) | 1979-11-08 | 1979-11-08 | Ultrasonic flaw detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14385379A JPS5667748A (en) | 1979-11-08 | 1979-11-08 | Ultrasonic flaw detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5667748A true JPS5667748A (en) | 1981-06-08 |
Family
ID=15348476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14385379A Pending JPS5667748A (en) | 1979-11-08 | 1979-11-08 | Ultrasonic flaw detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5667748A (en) |
-
1979
- 1979-11-08 JP JP14385379A patent/JPS5667748A/en active Pending
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