JPS57144407A - Detector for weld line - Google Patents
Detector for weld lineInfo
- Publication number
- JPS57144407A JPS57144407A JP3095781A JP3095781A JPS57144407A JP S57144407 A JPS57144407 A JP S57144407A JP 3095781 A JP3095781 A JP 3095781A JP 3095781 A JP3095781 A JP 3095781A JP S57144407 A JPS57144407 A JP S57144407A
- Authority
- JP
- Japan
- Prior art keywords
- work
- rays
- line
- weld line
- welded
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
- G01B15/04—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
PURPOSE:To suppress the influence of metallic vapor and sputters or electrical noises in a device of detecting the line to be welded, by using the X-rays generated when electron beams collide against the work. CONSTITUTION:The electron beam 8 from an electron gun 1 is focused by a focusing coil 3 onto the work 6; at the same time, it scans on the scanning line B crossing the line 7 to be welded of the work by a deflection coil 4 driven by the deflection current from a signal generator 15. When the electron beam collides against the work, X-rays 25 are generated. The intensity thereof is smallest when the collision position is on the weld line 7 because the beam penetrates deeply into the joint and the X-rays are shielded by the work. The quantity of the X-rays is sufficiently large and can be detected with a photodiode 26 or the like coated with metal. If this is displayed with an oscilloscope 18, the position of the weld line is discriminated from the position at the min. point thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3095781A JPS57144407A (en) | 1981-03-02 | 1981-03-02 | Detector for weld line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3095781A JPS57144407A (en) | 1981-03-02 | 1981-03-02 | Detector for weld line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57144407A true JPS57144407A (en) | 1982-09-07 |
Family
ID=12318155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3095781A Pending JPS57144407A (en) | 1981-03-02 | 1981-03-02 | Detector for weld line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57144407A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433754A (en) * | 1977-05-13 | 1979-03-12 | Steigerwald Strahltech | |
| JPS55120494A (en) * | 1979-03-09 | 1980-09-16 | Nippon Kokan Kk <Nkk> | Processing position tracing method utilizing x-ray in high density energy beam processing |
-
1981
- 1981-03-02 JP JP3095781A patent/JPS57144407A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5433754A (en) * | 1977-05-13 | 1979-03-12 | Steigerwald Strahltech | |
| JPS55120494A (en) * | 1979-03-09 | 1980-09-16 | Nippon Kokan Kk <Nkk> | Processing position tracing method utilizing x-ray in high density energy beam processing |
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