JPS55131765A - Ultrasonic flaw detector for welded part - Google Patents
Ultrasonic flaw detector for welded partInfo
- Publication number
- JPS55131765A JPS55131765A JP3855079A JP3855079A JPS55131765A JP S55131765 A JPS55131765 A JP S55131765A JP 3855079 A JP3855079 A JP 3855079A JP 3855079 A JP3855079 A JP 3855079A JP S55131765 A JPS55131765 A JP S55131765A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- adder
- flaw
- gate
- comparator
- 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
Abstract
PURPOSE: To automatically change the position of a gate through the voltage variation and perform automatic flaw detection by providing a circuit in which a gate starting output voltage varies in proportional to the distance between the probe and the weld metal.
CONSTITUTION: A voltage at a flaw detecting starting reference point of the detecting member is set in a voltage setter 6, and the moving distance from the flaw detection reference point is measured by a detection signal A from the position detector attached to the detecting member. A voltage proportional to the moving distance is produced from a potential divider 4, and is offset by a voltage from the voltage setter 6 through a voltage adder 5. A comparator 7 compares the voltage produced from the voltage adder 5 with a sweep voltage B from the flaw detector, and a sweep voltage equal to the input voltage of the voltage adder is led out from the comparator 7, and delivered from a terminal C as a gate starting pulse.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3855079A JPS55131765A (en) | 1979-03-30 | 1979-03-30 | Ultrasonic flaw detector for welded part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3855079A JPS55131765A (en) | 1979-03-30 | 1979-03-30 | Ultrasonic flaw detector for welded part |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55131765A true JPS55131765A (en) | 1980-10-13 |
JPS6255625B2 JPS6255625B2 (en) | 1987-11-20 |
Family
ID=12528391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3855079A Granted JPS55131765A (en) | 1979-03-30 | 1979-03-30 | Ultrasonic flaw detector for welded part |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55131765A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078344A (en) * | 1983-10-05 | 1985-05-04 | Tokyo Keiki Co Ltd | Gate circuit of ultrasonic flaw detector |
-
1979
- 1979-03-30 JP JP3855079A patent/JPS55131765A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6078344A (en) * | 1983-10-05 | 1985-05-04 | Tokyo Keiki Co Ltd | Gate circuit of ultrasonic flaw detector |
JPH0350988B2 (en) * | 1983-10-05 | 1991-08-05 | Tokimetsuku Kk |
Also Published As
Publication number | Publication date |
---|---|
JPS6255625B2 (en) | 1987-11-20 |
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